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Pearson Algebra 1 Common Core, 2011 View details

1. Inequalities and Their Graphs

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Exercise 77 Page 170

Use the Addition Property of Equality to eliminate the subtraction.

-2

Practice makes perfect

To solve the equation, we have to isolate p on one side. Using the Addition Property of Equality, we will add 4 to both sides of the equation. This will eliminate the subtraction on the left-hand side of the equation and isolate p.

p - 4 = -6

AddEqn

LHS+4=RHS+4

p - 4 + 4 = -6 + 4

AddTerms

Add terms

p+0=-2

IdPropAdd

Identity Property of Addition

p=-2