SOLUTION: -x-7y=4 x+4y=-1 I need to figure out what x is but I don't know how to change it to a positive. I have: -x=4+7y so what would positive x be?

Algebra ->  Algebra  -> Points-lines-and-rays -> SOLUTION: -x-7y=4 x+4y=-1 I need to figure out what x is but I don't know how to change it to a positive. I have: -x=4+7y so what would positive x be?      Log On

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Question 232101: -x-7y=4
x+4y=-1
I need to figure out what x is but I don't know how to change it to a positive.
I have:
-x=4+7y
so what would positive x be?
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
-x-7y=4
x+4y=-1 ADD THESE 2 EQUATIONS.
---------------
-3Y=3
Y=3/-3
Y=-1 ANS
X+4*-1=-1
X-4=-1
X=-1+4
X=3 ANS.
PROOF:
-3-7*-1=4
-3+7=4
4=4