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-x+\frac{1}{2}x=\frac{67}{12}+x+\frac{20}{12}-2
Least common multiple of 12 and 3 is 12. Convert \frac{67}{12} and \frac{5}{3} to fractions with denominator 12.
-x+\frac{1}{2}x=\frac{67+20}{12}+x-2
Since \frac{67}{12} and \frac{20}{12} have the same denominator, add them by adding their numerators.
-x+\frac{1}{2}x=\frac{87}{12}+x-2
Add 67 and 20 to get 87.
-x+\frac{1}{2}x=\frac{29}{4}+x-2
Reduce the fraction \frac{87}{12} to lowest terms by extracting and canceling out 3.
-x+\frac{1}{2}x=\frac{29}{4}+x-\frac{8}{4}
Convert 2 to fraction \frac{8}{4}.
-x+\frac{1}{2}x=\frac{29-8}{4}+x
Since \frac{29}{4} and \frac{8}{4} have the same denominator, subtract them by subtracting their numerators.
-x+\frac{1}{2}x=\frac{21}{4}+x
Subtract 8 from 29 to get 21.
-x+\frac{1}{2}x-x=\frac{21}{4}
Subtract x from both sides.
-x-\frac{1}{2}x=\frac{21}{4}
Combine \frac{1}{2}x and -x to get -\frac{1}{2}x.
-\frac{3}{2}x=\frac{21}{4}
Combine -x and -\frac{1}{2}x to get -\frac{3}{2}x.
x=\frac{21}{4}\left(-\frac{2}{3}\right)
Multiply both sides by -\frac{2}{3}, the reciprocal of -\frac{3}{2}.
x=\frac{21\left(-2\right)}{4\times 3}
Multiply \frac{21}{4} times -\frac{2}{3} by multiplying numerator times numerator and denominator times denominator.
x=\frac{-42}{12}
Do the multiplications in the fraction \frac{21\left(-2\right)}{4\times 3}.
x=-\frac{7}{2}
Reduce the fraction \frac{-42}{12} to lowest terms by extracting and canceling out 6.