laciejo2007 laciejo2007

15-05-2022
Mathematics

contestada

3x-y= 17
-x+y= -7

Help please

Respuesta :

Mohamed1429 Mohamed1429

15-05-2022

Answer:

y = -2

x = 5

Step-by-step explanation:

3x - y = 17

-x + y = -7

here we can find the sum of the two equations

2x = 10

x = 5

now we can just plug in the value of x to find y

-(5) + y = -7

y = -2

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