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2014-10-26T16:44:21+02:00
3/4 * [5*(2/3-x)+3/2]=7x/2
3/4 * (10/3-5x+3/2)=7x/2
3/4 * [(20-30x+9)/6]=7x/2
[3(20-30x+9)]/24=7x/2
3(20-30x+9)=84x
60-90x+27=84x
-174x=-84  |*(-1)
x=174/84
 x=2
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