# Systems of equations word problems

Solve word problems by modeling them into a system of equations and solving it.

### Problem

Giselle works as a carpenter and as a blacksmith.
She earns dollar sign, 20 per hour as a carpenter and dollar sign, 25 per hour as a blacksmith. Last week, Giselle worked both jobs for a total of 30 hours, and earned a total of dollar sign, 690.
How long did Giselle work as a carpenter last week, and how long did she work as a blacksmith?
Giselle worked as a carpenter for
hours and as a blacksmith for
hours last week.