3 years ago

Math 8th grade need help equation in picture

Mathematics

2 answers:

kozerog [31]3 years ago

8 0

Answer:

(-3,-4)

Step-by-step explanation:

x+y=-7

3x+2y=-17

x=-y-7

substitute

3(-y-7)+2y=-17

-3y-21+2y=-17

-y=4

y=-4

x=-3

Proof:

x+y=-7

(-3)+(-4)=-7 true

3x+2y=-17

3(-3)+2(-4)=-17

-9-8=-17 true

kari74 [83]3 years ago

7 0

Answer: (-3,-4)

Hope this helped!

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