Evaluate the expression if x = 6 and y = 7. 3x + 2y

Step-by-step explanation:

First we multiply 3 and 6 because x=6.

3x6=18

Then we multiply 2 and 7 because y=7.

2x7=14

Finally, we add 18 and 14.

18+14=32

Hope it helps!

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