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What is the solution to the following system of equations? x + y = 5 and x - y =

Algebra
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help wanted

Apr 26th, 2015

ok, I can help you.

x+y=5, x-y=??? 

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Apr 26th, 2015

okay proceed?


Apr 26th, 2015

no, I mean x-y=what? There should be a number here, or else you can't solve for x, y

Apr 26th, 2015

ok..

What is the solution to the following system of equations? x + y = 5 and x - y = 1

Apr 26th, 2015

x+y=5 equation 1

x-y=1  equation 2

equation 2: x=1+y, plug this into equation 1 you get:

1+y+y=5, 2y=4, y=2

thus the solutions are x=1+2=3, y=2

Apr 26th, 2015

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