Common Core · High school

HSA-CED.A.4

High school — Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.

The skill that covers it

Literal Equations & FormulasRearrange a formula to isolate any one of its letters, using the same moves as a numeric equation, and use the rearranged form to solve for the quantity you actually need.Read the lesson →

What a student should be able to do

Solve a formula such as $p = 2l + 2w$ for one of its variables.
Isolate a variable that appears inside a fraction or multiplied by another letter.
Choose the rearrangement that matches a given formula.
Rearrange a formula and then evaluate it for given values.

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