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McGraw Hill Glencoe Algebra 2, 2012
MH
McGraw Hill Glencoe Algebra 2, 2012 View details
3. Solving Equations
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Exercise 9 Page 22

Use the Addition Property of Equality to eliminate the subtraction.

z=53

Practice makes perfect

To solve the equation, we have to isolate z on one side. Using the Addition Property of Equality, we will add 19 to both sides. This will eliminate the subtraction and isolate z.

z-19=34
AddEqn

LHS+19=RHS+19

z-19 + 19=34 + 19
AddTerms

Add terms

z=53

To check that this solution is correct, substitute z=53 into the original equation and simplify.

z-19=34
Substitute

z= 53

53-19? =34
SubTerm

Subtract term

34=34

Since the left-hand side and right-hand side are equal, z=53 is the correct solution.

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arrow_right Check Your Understanding p.22
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arrow_right Standardized Test Practice p.25
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arrow_right Spiral Review p.25
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