Question 1175263
x and y;
{{{7+30/60=x+y}}}
really only need one variable;
{{{x+x+12/60=7+30/60}}}------------x time in minutes for shorter song.  Solve.


{{{2x+12/60=7+30/60}}}
{{{120x+12=420+30}}}
{{{120x=420+30-12}}}
{{{120x=438}}}
{{{x=438/120}}}
{{{x=3.65}}}



Short Song is  3 minutes 39 seconds.
Longer Song is 3 minutes 51 seconds.


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Much better writing style may be this way:
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On the album <u>1989</u> by taylor swift, "Blank Space" is 12 seconds longer than "Shake It Off". if the combined time of the two songs is 7 minutes and 30 seconds, how long is "Shake It Off"?  Give your answer in minutes and seconds.