benkolasa03 benkolasa03
  • 14-02-2020
  • Mathematics
contestada

4x+8=20 -4x+4y=-10 Solve for X and Y

Respuesta :

meredith48034
meredith48034 meredith48034
  • 14-02-2020

Answer:

4x + 8y = 20

-4x + 4y = -10

12y = 10

y =10/12= 5/6

4x + 8(5/6) = 20

4x + 40/6 = 120/6

4x = 80/6

x = 3 1/3 or 10/3

4(10/3) + 8y = 20

40/3 + 8y = 60/3

8y = 20/3

y = 5/6

Step-by-step explanation:

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