SOLUTION: How do I solve: y=x-3 Y=-3/4x + 4 I know how to do rise over run with whole numbers, just not fractions

Algebra ->  Linear-equations -> SOLUTION: How do I solve: y=x-3 Y=-3/4x + 4 I know how to do rise over run with whole numbers, just not fractions      Log On


   

Question 994463: How do I solve: y=x-3
Y=-3/4x + 4
I know how to do rise over run with whole numbers, just not fractions
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How do I solve: y=x-3
Y=-3/4x + 4
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Sub for y
x-3 = -3/4x + 4
Assuming you mean (-3/4)x:
Multiply thru by 4 to eliminate fractions.
4x-12 = -3x + 16
7x = 28
x = 4
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y = x-3
y = 1