Find the solution to the system of equations.
You can use the interactive graph below to find the solution. −2x+2y=−4
3x+3y=−18
x=
y=

x = -2, y = -4

Step-by-step explanation:

-2x+2y = -4 (1)

3x+3y = -18 (2)

(1) 2y = 2x - 4

y = x - 2

(2) 3x + 3(x - 2) = -18

3x + 3x - 6 = -18

6x = - 12

x = -2

y = (-2) - 2 = -4

x = -2, y = -4

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14