SOLUTION: can you help me answer 8-5r over 6=3, -4a-1 over -10a=3/8, and y+4 over y-1=4/3 -than

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: can you help me answer 8-5r over 6=3, -4a-1 over -10a=3/8, and y+4 over y-1=4/3 -than      Log On


   

Question 476706: can you help me answer 8-5r over 6=3, -4a-1 over -10a=3/8, and y+4 over y-1=4/3

-thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
8-5r over 6=3,
(8-5r)/6 = 3
(8-5r) = 18
-5r = 10
r = -2
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-4a-1 over -10a=3/8,
(-4a-1)/10a = (3/8)
Cross-multiply:
-32a - 8 = -30a
2a = -8
a = -4
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y+4 over y-1=4/3
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(y+4)/(y-1) = 4/3
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3y+12 = 4y-4
y = 16
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Cheers,
Stan H.