## Algebra 1: Common Core (15th Edition)

Job one can be represented by the equation: y= 9x Job two can be represented by the equation: y=12x-39 Set the two equations to equal one another: $9x = 12x-39 \\ 9x =12x-39\\ 0=3x-39 \\ 39=3x\\ x=13$ Once you have your x value, plug it in to one of the original equations of your choosing: $9(13)= 117$ dollars