Lesson 26 Student Outcomes
Students solve one-step equations by relating an equation to a diagram.
Students check to determine if their solution makes the equation true.
Solve each equation. Use both tape diagrams and algebraic methods for each problem. Use substitution to check your answers.
a. b + 9 = 15
b. 12 = 8 + c
Given the equation d - 5 = 7:
a. Demonstrate how to solve the equation using tape diagrams.
b. Demonstrate how to solve the equation algebraically.
c. Check your answer.
Solve each problem and show your work. You may choose which method (tape diagrams or algebraically) you prefer.
Check your answers after solving each problem.
a. e + 12 = 20
b. f - 15 = 15
c. g - 8 = 9
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