paulancincarmorevl paulancincarmorevl

01-04-2017
Mathematics

contestada

What is a solution for the system of equations x – y = 2 and y = 2x – 4?

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rahmasaleh00 rahmasaleh00

02-04-2017

x-y=2 y=x-2
y-2x=-4 y=0
x-2x=2-4
-x=-2
so,x=2

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