Asked by Gena

-3x+4y=-3
x=3y-4

X-4y=4
-x=4y=-4

Answers

Answered by Steve
#1
Since x = 3y-4,
-3(3y-4)+4y = -3
now just solve for y and then x

#2
Since x = 4+4y,
-(4+4y) = 4y=-4
or something
Again, solve for y, then x
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