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12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\left(\frac{3x+17}{6}-\frac{7}{3}\right)\right)\right)+43=0
Multiply both sides of the equation by 12, the least common multiple of 2,12,6,3.
12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\left(\frac{3x+17}{6}-\frac{7\times 2}{6}\right)\right)\right)+43=0
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 6 and 3 is 6. Multiply \frac{7}{3} times \frac{2}{2}.
12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\frac{3x+17-7\times 2}{6}\right)\right)+43=0
Since \frac{3x+17}{6} and \frac{7\times 2}{6} have the same denominator, subtract them by subtracting their numerators.
12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\frac{3x+17-14}{6}\right)\right)+43=0
Do the multiplications in 3x+17-7\times 2.
12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\frac{3x+3}{6}\right)\right)+43=0
Combine like terms in 3x+17-14.
12\left(\frac{3x+5}{2}-\left(\frac{3x-5}{12}-\frac{2\left(3x+3\right)}{12}\right)\right)+43=0
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 12 and 6 is 12. Multiply \frac{3x+3}{6} times \frac{2}{2}.
12\left(\frac{3x+5}{2}-\frac{3x-5-2\left(3x+3\right)}{12}\right)+43=0
Since \frac{3x-5}{12} and \frac{2\left(3x+3\right)}{12} have the same denominator, subtract them by subtracting their numerators.
12\left(\frac{3x+5}{2}-\frac{3x-5-6x-6}{12}\right)+43=0
Do the multiplications in 3x-5-2\left(3x+3\right).
12\left(\frac{3x+5}{2}-\frac{-3x-11}{12}\right)+43=0
Combine like terms in 3x-5-6x-6.
12\left(\frac{6\left(3x+5\right)}{12}-\frac{-3x-11}{12}\right)+43=0
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 2 and 12 is 12. Multiply \frac{3x+5}{2} times \frac{6}{6}.
12\times \frac{6\left(3x+5\right)-\left(-3x-11\right)}{12}+43=0
Since \frac{6\left(3x+5\right)}{12} and \frac{-3x-11}{12} have the same denominator, subtract them by subtracting their numerators.
12\times \frac{18x+30+3x+11}{12}+43=0
Do the multiplications in 6\left(3x+5\right)-\left(-3x-11\right).
12\times \frac{21x+41}{12}+43=0
Combine like terms in 18x+30+3x+11.
\frac{12\left(21x+41\right)}{12}+43=0
Express 12\times \frac{21x+41}{12} as a single fraction.
21x+41+43=0
Cancel out 12 and 12.
21x+84=0
Add 41 and 43 to get 84.
21x=-84
Subtract 84 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-84}{21}
Divide both sides by 21.
x=-4
Divide -84 by 21 to get -4.