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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)

DivEqn

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

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

CancelCommonFac

Cancel out common factors

q/(r+s)=p

RemovePar

Remove parentheses

q/r+s=p

RearrangeEqn

Rearrange equation