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5\left(4-x\right)=3\left(6-3x\right)
Multiply both sides of the equation by 15, the least common multiple of 3,5.
20-5x=3\left(6-3x\right)
Use the distributive property to multiply 5 by 4-x.
20-5x=18-9x
Use the distributive property to multiply 3 by 6-3x.
20-5x+9x=18
Add 9x to both sides.
20+4x=18
Combine -5x and 9x to get 4x.
4x=18-20
Subtract 20 from both sides.
4x=-2
Subtract 20 from 18 to get -2.
x=\frac{-2}{4}
Divide both sides by 4.
x=-\frac{1}{2}
Reduce the fraction \frac{-2}{4} to lowest terms by extracting and canceling out 2.