1 2 3 4 5 6 7 8 What is the value of b in the equation (y* (70) - va 0 -20 -6 6 20​

the answer is b.)

< 1=< 2

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

their is no graph showing

step-by-step explanation: