CH05-03 lesson

Solving Equations with the Distributive Property Learning Activity

A focused Grade 7 learning session for Solving Equations with the Distributive Property using visual models, worked examples, strategy guidance, and a short mastery check.

18
minutes
6
lesson parts
11
practice items
Learning goal

Students will build Grade 7 mastery of solving equations with the distributive property using models, equations, and test-style reasoning.

Student goal: I can solve problems involving solving equations with the distributive property.

concept

Learn the Idea

Solving Equations with the Distributive Property is part of Grade 7 Equations and Inequalities. This activity focuses on the central idea students need before they move into independent practice.

Students will build Grade 7 mastery of solving equations with the distributive property using models, equations, and test-style reasoning.

visual model

See the Math

What to noticeHow to use it
Numbers, units, labels, diagrams, or graphsIdentify what each part represents before calculating.
The relationship in the problemConnect the model to an equation, comparison, or explanation.

Use the figures and worked questions in the practice set below as the visual model for this skill.

worked example

Follow a Worked Example

Read the first practice question slowly. Decide what the question is asking, choose a strategy, solve, and then compare your reasoning with the answer explanation.

For Solving Equations with the Distributive Property, a strong worked example should show the setup, the calculation or model, and a final answer that matches the context.

real world

Connect It to a Real Situation

Many Grade 7 test questions use real situations. Look for quantities, units, rates, measures, expressions, or data values that connect the math to the story.

After solving, explain what the answer means in the situation, not just the number you calculated.

strategy

Avoid Mistakes and Choose a Strategy

  • Underline the exact question before solving.
  • Label units, variables, or graph axes when they appear.
  • Estimate first so unreasonable answers are easier to catch.
  • Review missed questions and write the reason for each mistake.
summary

Remember the Key Idea

I can solve problems involving solving equations with the distributive property.

Use the warmup, guided question, practice set, and exit questions below to check whether this skill is ready or needs more practice.

Guided to independent practice

Solve before opening the answer

Use scratch paper. The explanation matters more than simply seeing whether the choice is correct.

warmup

2 questions
G7-C05-T03-Q001 About 1 min

Solve for \(x\): \(3(x+4)=27\)

  1. A \(x=5\)
  2. B \(x=7\)
  3. C \(x=9\)
  4. D \(x=23\)
Check answer and explanation

Answer A: \(x=5\)

Distribute: \(3x+12=27\). Subtract \(12\): \(3x=15\). Divide by \(3\): \(x=5\). (Distractor D: forgetting to distribute gives \(x+4=27 \Rightarrow x=23\).)

G7-C05-T03-Q002 About 1 min

Solve for \(x\): \(5(x-2)=35\)

  1. A \(x=5\)
  2. B \(x=7\)
  3. C \(x=9\)
  4. D \(x=12\)
Check answer and explanation

Answer C: \(x=9\)

Distribute: \(5x-10=35\). Add \(10\): \(5x=45\). Divide by \(5\): \(x=9\). (Distractor A: solving \(x-2=5\) instead; Distractor D: arithmetic error when isolating \(x\).)

guided

1 question
G7-C05-T03-Q003 About 1 min

Solve for \(x\): \(2(x+6)=20\)

  1. A \(x=2\)
  2. B \(x=4\)
  3. C \(x=6\)
  4. D \(x=8\)
Check answer and explanation

Answer B: \(x=4\)

Distribute: \(2x+12=20\). Subtract \(12\): \(2x=8\). Divide by \(2\): \(x=4\). (Distractor A: dividing only the right side; Distractor C: forgetting to divide by 2; Distractor D: arithmetic error in final step.)

practice

5 questions
G7-C05-T03-Q004 About 1 min

Solve for \(x\): \(4(x-3)=12\)

  1. A \(x=0\)
  2. B \(x=3\)
  3. C \(x=6\)
  4. D \(x=9\)
Check answer and explanation

Answer C: \(x=6\)

Distribute: \(4x-12=12\). Add \(12\): \(4x=24\). Divide by \(4\): \(x=6\).

G7-C05-T03-Q005 About 1 min

Solve for \(x\): \(6(x+2)=30\)

  1. A \(x=1\)
  2. B \(x=3\)
  3. C \(x=5\)
  4. D \(x=7\)
Check answer and explanation

Answer B: \(x=3\)

Distribute: \(6x+12=30\). Subtract \(12\): \(6x=18\). Divide by \(6\): \(x=3\).

G7-C05-T03-Q006 About 1 min

Solve for \(x\): \(2(x-5)=14\)

  1. A \(x=7\)
  2. B \(x=12\)
  3. C \(x=9\)
  4. D \(x=5\)
Check answer and explanation

Answer B: \(x=12\)

Distribute: \(2x-10=14\). Add \(10\): \(2x=24\). Divide by \(2\): \(x=12\).

G7-C05-T03-Q007 About 1 min

Solve for \(x\): \(7(x+1)=49\)

  1. A \(x=5\)
  2. B \(x=6\)
  3. C \(x=7\)
  4. D \(x=8\)
Check answer and explanation

Answer B: \(x=6\)

Distribute: \(7x+7=49\). Subtract \(7\): \(7x=42\). Divide by \(7\): \(x=6\).

G7-C05-T03-Q008 About 1 min

Solve for \(x\): \(-2(x+3)=10\)

  1. A \(x=-8\)
  2. B \(x=-5\)
  3. C \(x=2\)
  4. D \(x=5\)
Check answer and explanation

Answer A: \(x=-8\)

Distribute: \(-2x-6=10\). Add \(6\): \(-2x=16\). Divide by \(-2\): \(x=-8\).

exit

3 questions
G7-C05-T03-Q009 About 1 min

Solve for \(x\): \(-3(x-2)=15\)

  1. A \(x=-3\)
  2. B \(x=-1\)
  3. C \(x=3\)
  4. D \(x=7\)
Check answer and explanation

Answer A: \(x=-3\)

Distribute: \(-3x+6=15\). Subtract \(6\): \(-3x=9\). Divide by \(-3\): \(x=-3\).

G7-C05-T03-Q010 About 1 min

Solve for \(x\): \(5(x-4)=45\)

  1. A \(x=5\)
  2. B \(x=9\)
  3. C \(x=13\)
  4. D \(x=17\)
Check answer and explanation

Answer C: \(x=13\)

Distribute: \(5x-20=45\). Add \(20\): \(5x=65\). Divide by \(5\): \(x=13\).

G7-C05-T03-Q011 About 1 min

Which equation is equivalent to \(3(x-5)=24\)?

  1. A \(3x-15=24\)
  2. B \(3x-5=24\)
  3. C \(x-15=24\)
  4. D \(3x=19\)
Check answer and explanation

Answer A: \(3x-15=24\)

The distributive property gives \(3 \cdot x - 3 \cdot 5 = 24\), so \(3x-15=24\).

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