aamna87 aamna87
  • 19-09-2020
  • Mathematics
contestada

3x - y = 17
x + y = - 5

Respuesta :

aliwreading
aliwreading aliwreading
  • 19-09-2020

Answer:

x = 3 and y = -8

Step-by-step explanation:

eliminate your y value

4x = 12 (divide 12 by 4)

x = 3

plug x into whichever variable you want, I went with the 2nd one.

3 + y = -5 (subtract 3 from both sides to get y by itself)

y = -8

Check your answer by plugging both answers in

3 - 8 = -5

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