spook1829
spook1829 spook1829
  • 21-02-2020
  • Mathematics
contestada

X=2y-8
-4x+3y=7
Use substitution to solve the system. Please someone help me out

Respuesta :

22stolc
22stolc 22stolc
  • 21-02-2020

Answer:

y = 5      x = 2

Step-by-step explanation:

-4(2y - 8) + 3y = 7   Plug the first equation into the second equation and distribute the -4

-8y + 32 + 3y = 7     Combine like terms

-5y + 32 = 7

      - 32  - 32          Subtract 32 from both sides

-5y = -25

y = 5

Plug 5 into the first equation as y

x = 2(5) -8

x = 10 - 8

x = 2

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