Rewrite Equations to Solve for a Different Variable

Rewrite Equations to Solve for a Different Variable - How it Works - Video

Example 1

Example 1:

We need to solve for l. So we need to get rid of the w on the right and move it to the left.

A = l * w

l = A / w

Given

Divided both sides by w

Example 2

Example 2:

We need to solve for w. So we need to get rid of the l on the right and everything else and move it to the left.

P = 2 * l + 2 * w

P - 2 * l = 2 * w

(P - 2 * l) / 2 = w

Given

Subtracted both sides by 2 * l

Divided both sides by 2

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