SOLUTION: what does x and y =
the equation is x-4y=8
the other one is x=-1+y
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Question 127428: what does x and y =
the equation is x-4y=8
the other one is x=-1+y
Answer by BrittanyM(80) (Show Source): You can put this solution on YOUR website!
We are given:
x - 4y = 8
and
x = -1 + y
Since we know what the value of x is in terms of y, we may solve for the values by using substitution.
( -1 + y ) - 4y = 8
-1 -3y = 8
-3y = 9
y = -3
Now that we have the value of y, we can just plug it in to find x
x - 4( -3 ) = 8
x + 12 = 8
x = -4
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