Two Step equations

Understand The Problem EX: Chris’s landscaping bill is 380$. The

plants cost 212$,and the labor cost 48$ per hour.

Total bill = plants + labor 380 = 212 + 48h

Make A Plan THINK: First the variable is multiplied by 48, and then 212 is added to the

result. Work backward to solve the equation. Undo the operations in reverse order: First subtract 212 from both sides of the equation, and then divide both sides of the new equation by 48.

Solve: 380= 212+48h -212 -212 Answer= the landscaper worked 3.5 hours 168 = 48h 168 = 48h 48 48 3.5 =h

Look Back If the landscaper worked 3.5 hours, the

labor would be $48(3.5) = $168. The sum of the plants and the labor would

be $212 + $168 = $380.

Simple

380 – 212 = 168 168 divided by 48= 3.5= h

Homeworkwork on at home =) PG: 500

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