What is the value of (x)

x = 7

Step-by-step explanation:

multiply 7 on both sides to get x = 7 x 1. x = 7

x=7

Step-by-step explanation:

Because 7*1 equal 7

And 7 divided by 7 is 1

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