SOLUTION: [ 2r - s ] / [ - 5 ] = [ - 4r - t ] / [ - 4 ] solve for r

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Question 984503: [ 2r - s ] / [ - 5 ] = [ - 4r - t ] / [ - 4 ]
solve for r
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply both sides by -20.
4%282r-s%29=5%28-4r-t%29
8r-4s=-20r-5t
28r=4s-5t
r=%284s-5t%29%2F28