6x + 5y = 4 5. and 6x – 7y = –20 what does x and y equal?

Mathematics

1 answer:

irakobra [83]2 years ago

6 0

Answer:

x=-1 y=2

Step-by-step explanation:

Use Elimination or Substitution (Elimination shown below)

6x+5y=4

6x-7y =-20 <- Multiply by -1

-6x+7y=20

12y = 24

y=2

Plug back into either of the equations and solve for x.

6x + 10= 4

6x = -6

x = -1

Double check work:

-6+10 = 4

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