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McGraw Hill Glencoe Algebra 1, 2012

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McGraw Hill Glencoe Algebra 1, 2012 View details

8. Literal Equations and Dimensional Analysis

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Exercise 4 Page 128

Apply inverse operations to isolate p.

p=q/r+s

Practice makes perfect

To solve the given literal equation for p, we will use the Properties of Equality to apply inverse operations on the equation. Remember, only like terms can be combined.

q=p(r+s)

.LHS /(r+s).=.RHS /(r+s).

q/(r+s)=p(r+s)/(r+s)

CancelCommonFac

Cancel out common factors

q/(r+s)=p

Remove parentheses

q/r+s=p

Rearrange equation

p=q/r+s

Subchapter links

Check Your Understanding p.128

Practice and Problem Solving p.129-130

H.O.T. Problems p.130

Standardized Test Practice p.131

Spiral Review p.131

Skills Review p.131