MathMan2234 MathMan2234
  • 14-04-2022
  • Mathematics
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Use Substitution to solve each system of equations.

Use Substitution to solve each system of equations class=

Respuesta :

angle46089
angle46089 angle46089
  • 14-04-2022

Answer:

x = -3

y = -2

(-3, -2)

Step-by-step explanation:

x - 7y = 11

5x + 4y = -23

-----------------------

-5 (x - 7y = 11)

-5x + 35y = -55

--------------------------

-5x + 35y = -55

5x + 4y = -23

       39y = -78

     ÷39     ÷39

        y = -2

-----------------------------

x - 7y = 11

x -7(-2) = 11

x + 14 = 11

   -14    -14

x = -3

I hope this helps!

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