Question

Solve the system of equations using the substitution method. {y=−3x+7 x=−2y−16

Answer 1

x=6 and y=-11

Explanation:

i took the test and this was correct

Answer 2

y= -3x +7

x= -2 *(-3x+7) -16
x= -2* (-3x) -2*7-16
x= 6x-14-16
x=6x-30
6x-x=30
5x=30
x=30:5
x=6

y=-3*6+7
y=-18+7
y= -11