Cheyenne spend $23 a shirt,$29 on a pair of a pants, and $17 on a pair of shoes. if cheyenne paid for the items with four $20 bills how much change did she receive. choose a flexible method to solve the problem.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10

step-by-step explanation:

se a cavasery6