jiannaamazing jiannaamazing

03-03-2021
Mathematics

contestada

2x - y = 17
x- y = 10

Respuesta :

bridgett37722 bridgett37722

03-03-2021

Answer: x = 7, y = -3

Step-by-step explanation:

2x - y = 17

x - y = 10 —> x = y + 10

2(y + 10) - y = 17

2y + 20 - y = 17

y + 20 = 17

-20 -20

y = -3

x = y + 10

x = (-3) + 10

x = 7

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