Mathematics for IGCSE & O level - Equations (Section 7 - No. 5)

If you want to rearrange the formula P = 2(l + w) to solve for 'l' (length), what's the correct first step?

Subtract 'w' from both sides.

Divide both sides by 2.

Divide both sides by 'w'.

Subtract 2 from both sides.

First, divide both sides by 2: P/2 = l + w.