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Big Ideas Math Geometry, 2014
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Big Ideas Math Geometry, 2014 View details
1. Points, Lines, and Planes
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Exercise 72 Page 10

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
AddEqn

LHS+23=RHS+23

x-23+23=19+23
AddTerms

Add terms

x=42
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