Question 1008688
 two number have the ratio 3:4 if 5 is subtracted from each of the number the difference have ratio of 1:3 find the number 
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x/y = 3/4
(x-5)/(y-5) = 1/3
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x = (3/4)y
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Substitute for "x" and solve for "y"::
((3/4)y -5)/(y-5) = 1/3
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Cross-multiply::
3[(3/4)y-5] = y-5
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(9/4)y - 15 = y-5
(5/4)y = 10
y = 8
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Solve for "x":
x = (3/4)y
x = (3/4)8 = 6
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Cheers,
Stan H.
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