Solve the system of equations.
12x - 5y = –20
y = x +4

x=
y=

For equation 12x -5y= -20

x=5/12y -20/12

y=12/5x + 4

For equation y=x+4

x=y -4

y=x+4

Step-by-step explanation:

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.