Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
1. Points, Lines, and Planes
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Exercise 72 Page 386

Use the Addition Property of Equality to eliminate the subtraction.

x=42

Practice makes perfect

To solve the equation, we have to isolate x on one side. Using the Addition Property of Equality, we will add 23 to both sides of the equation. This will eliminate the subtraction and isolate x.

x-23=19
x-23+23=19+23
x=42