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Glencoe Math: Course 2, Volume 2

GM

Glencoe Math: Course 2, Volume 2 View details

1. Solve One-Step Addition and Subtraction Equations

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Exercise 26 Page 443

Use the Subtraction Property of Equality to eliminate the addition.

b=-1.25

Practice makes perfect

To solve the equation, we have to isolate b on one side. Using the Subtraction Property of Equality, we can subtract 2.25 from both sides of the equation. This will eliminate addition on the left-hand side and isolate b.

b+2.25=1

LHS- 2.25=RHS- 2.25

b+2.25- 2.25=1- 2.25

Subtract terms

b=-1.25

To check that this solution is correct, let's substitute b=-1.25 into the original equation and simplify.

b+2.25=1

b= -1.25

-1.25+2.25? =1

Add terms

1=1 ✓

Because the left-hand side and right-hand side are equal, b=-1.25 is the correct solution.

Subchapter links

Guided Practice p.440

Independent Practice p.441-442

H.O.T. Problems p.442

Standardized Test Practice p.442-444

Extra Practice p.443

Common Core Review p.444