Miguel sells used cars. He earns a 6% commision on each sale he makes. Miguel sold a used car for $750. How much money did he make from the sale?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

6.5

step-by-step explanation:

you said it was in the question

~courtney

faster, im not sure why but i know it is faster

96 39 cause 135 -96=39 im smart (i used a calculater)