Amemebership is $25 per month and personal training are $30 at another place membership is $65 per month and personal trading is $20 each in one month how many personal training does sarah have to do to make the two gyms equal

d 192

step-by-step explanation:

we find our area to find area we multiply thoses numbers to get our answer so our area is 192

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