Question

I'm sorry please help.

Solve the following system of equations.
x-3y=17
x+7y=-23
x=
y=

Answer 1

x= 5

y= -4

Explanation:

x= 17+3y so you substitute what you got for x in so

17 +3y +7y = -23

10y=-40

y=-4 now you put -4 in for y in the first equation

x = 17 + (3 times -4)

x = 17 - 12

x=5

Answer 2

-4y=40

y=-10

x-3(-10)=17

x-30=17

x=17+30

x=47

Explanation: