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\frac{5\left(2x-1\right)}{45}-\frac{9\left(x-4\right)}{45}=x
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 9 and 5 is 45. Multiply \frac{2x-1}{9} times \frac{5}{5}. Multiply \frac{x-4}{5} times \frac{9}{9}.
\frac{5\left(2x-1\right)-9\left(x-4\right)}{45}=x
Since \frac{5\left(2x-1\right)}{45} and \frac{9\left(x-4\right)}{45} have the same denominator, subtract them by subtracting their numerators.
\frac{10x-5-9x+36}{45}=x
Do the multiplications in 5\left(2x-1\right)-9\left(x-4\right).
\frac{x+31}{45}=x
Combine like terms in 10x-5-9x+36.
\frac{1}{45}x+\frac{31}{45}=x
Divide each term of x+31 by 45 to get \frac{1}{45}x+\frac{31}{45}.
\frac{1}{45}x+\frac{31}{45}-x=0
Subtract x from both sides.
-\frac{44}{45}x+\frac{31}{45}=0
Combine \frac{1}{45}x and -x to get -\frac{44}{45}x.
-\frac{44}{45}x=-\frac{31}{45}
Subtract \frac{31}{45} from both sides. Anything subtracted from zero gives its negation.
x=-\frac{31}{45}\left(-\frac{45}{44}\right)
Multiply both sides by -\frac{45}{44}, the reciprocal of -\frac{44}{45}.
x=\frac{-31\left(-45\right)}{45\times 44}
Multiply -\frac{31}{45} times -\frac{45}{44} by multiplying numerator times numerator and denominator times denominator.
x=\frac{1395}{1980}
Do the multiplications in the fraction \frac{-31\left(-45\right)}{45\times 44}.
x=\frac{31}{44}
Reduce the fraction \frac{1395}{1980} to lowest terms by extracting and canceling out 45.