I Need help creating and figuring out an equation for this problem

Alejandra worked two part-time jobs last week. The first job paid $9 an hour, and the second job paid $8 an hour. She worked a total of 15 hours last week and earned $130. How many hours did Alejandra work at the first job?

A) Write an equation you can use to answer this question. Let x be the number of hours worked at the first job. Do not solve the equation yet.

B) Solve your equation.
Alejandra worked
hours at the first job.

Question

I Need help creating and figuring out an equation for this problem 

Alejandra worked two part-time jobs last week. The first job paid $9 an hour, and the second job paid $8 an hour. She worked a total of 15 hours last week and earned $130. How many hours did Alejandra work at the first job?

A) Write an equation you can use to answer this question. Let x be the number of hours worked at the first job. Do not solve the equation yet. 

 

B) Solve your equation. 
Alejandra worked 
 hours at the first job.

raffle_snaffle · Answer

I believe the equation is going to be linear.

raffle_snaffle · Answer

f(x) = y = dollar amount while x = hours worked