reconditevids reconditevids
  • 02-02-2021
  • Mathematics
contestada

Math 8th grade need help equation in picture

Math 8th grade need help equation in picture class=

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briannasmithcat
briannasmithcat briannasmithcat
  • 02-02-2021
Answer: (-3,-4)

Hope this helped!
Answer Link
thebecks
thebecks thebecks
  • 02-02-2021

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

Answer Link

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