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07-04-2021
Mathematics

contestada

2x - y = 9
y=x-7
what is the answer

Respuesta :

07-04-2021

Answer:

x = 2

y = -5

Step-by-step explanation:

2x - y = 9

y = x - 7

2x - y = 9

2x - (x - 7) = 9

2x - x + 7 = 9

x + 7 = 9

x = 2

y = x - 7

y = 2 - 7

y = -5

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