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11-11-2020
Mathematics

contestada

2x-y=1
x-y=-2
......................................

Respuesta :

3331354 3331354

11-11-2020

Answer:

y=5 x=3

Step-by-step explanation:

x-y=-2 move the y over to isolate x

x=-2+y Now plug that in for x in the first equation

2(-2+y)-y=1 Distribute

-4+y=1 Add 4 on both sides

y=5

x-5=-2

x=3

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