Solving Equations with Variables on Both Sides

8th GradeMath30 min

aligned to 8.ee.c.7

Learning Objective

I can solve equations with variables on both sides by using inverse operations.

Lesson Flow

Watch Video

6 min

Ex 2: Solve a Multiple Step Equation with Parentheses and Variables on Both Sides

Mathispower4u

Guided Notes

6 min

Key concepts students will learn:

  • The first step in solving the equation is to clear the parentheses by distributing the numbers outside the parentheses.

  • To isolate the variable term, you must undo the addition by subtracting 66 on both sides of the equation, resulting in 14x = -34.

  • To verify the solution, substitute -17/7 for x in the original equation to ensure that the left side of the equation equals the right side.

Practice

10 min

3 questions • Multiple choice & Short answer

Exit Ticket

5 min

Solve for x: 5(x + 2) - 3 = -2(x - 1) - 5

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts