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Envision Math 2.0: Grade 6, Volume 1

EM

Envision Math 2.0: Grade 6, Volume 1 View details

Review

Exercise 8 Page 247

Use the Addition Property of Equality to get rid of the subtraction.

x=686

Practice makes perfect

To solve an equation, we isolate x on one side. Using the Addition Property of Equality, we will add 236 to both sides of the equation.

x-236=450

LHS+236=RHS+236

x-236+236=450+236

Add terms

x=686

To check that this solution is correct, let's substitute x=686 into the original equation and simplify.

x-236=450

x= 686

686-236? =450

Subtract term

450=450 ✓

Since the left-hand side and the right-hand side are equal, x=686 is the correct solution.

Subchapter links

Topic Essential Question p.245

Vocabulary Review p.245

Use Vocabulary in Writing p.245

1 Understand Equations and Solutions p.246

2 Apply Properties of Equality p.246

3-4 Write and Solve Addition, Subtraction, Multiplication, and Division Equations p.247

5 Write and Solve Equations with Rational Numbers p.247

6 Understand and Write Inequalities p.248

7 Solve Inequalities p.248

8 Understand Dependent and Independent Variables p.249

9 Use Patterns to Write and Solve Equations p.249

10 Relate Tables, Graphs, and Equations p.250