SOLUTION: x+3y=1 -4y=x find x

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Question 922596: x+3y=1 -4y=x find x
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-4y = x is the same as x = -4y

Start with x+3y=1 and replace every x with -4y. Then solve for y

x+3y=1

-4y+3y=1

-y = 1

y = -1

Then use this to find x


x = -4y

x = -4(-1)

x = 4


So x = 4 and y = -1


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