What is the y value when x equals -15? You make a table to use as a quick
reference guide.
y-180 - 9(x).
Use the table tool to answer the
question:
x-value
y-value
-12
-72
-13
-63
-54
-14
-15
-45
-16
-36

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

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