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Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

1. Solving Simple Equations

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Exercise 12 Page 8

Use the Addition Property of Equality to isolate g on one side of the equation.

g=24

Practice makes perfect

To solve the equation, we have to isolate g on one side. Using the Addition Property of Equality, we will add 16 to both sides of the equation. This will eliminate the constant on the left-hand side of the equation and isolate g.

g-16=8

LHS+16=RHS+16

g-16+16=8+16

Add terms

g=24

To check that this solution is correct, let's substitute g= 24 into the original equation and simplify.

g-16=8

g= 24

24-16? =8

Subtract term

8=8 ✓

Since the left-hand side and right-hand side are equal, g=24 is the correct solution.

Subchapter links

Try It p.4-6

Self-Assessment for Concepts & Skills p.6

Self-Assessment for Problem Solving p.7

Review & Refresh p.8

Concepts, Skills, & Problem Solving p.8-10