TE
What should be the first step to solve the equation?
2x + 9(x - 1) = 8(2x + 2)- 5

It should be to distribute the parentheses

Step-by-step explanation:

That equals 2x+9x-9 = 16x+16-5 = 11x-9+=16x+11. You should be able to go from there.

x=-4

Step-by-step explanation: distribute into the parenthesis

2x+9x-9= 16x + 16 -5

combine like terms

11x-9= 16x +11

add 9 on both sides

11x= 16x +20

subtract 16 on both sides

-5x=20

divide by -5 on both sides

x=-4  

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