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6\left(x+3\right)+2=4\left(2x-4\right)-9
Multiply both sides of the equation by 12, the least common multiple of 2,6,3,4.
6x+18+2=4\left(2x-4\right)-9
Use the distributive property to multiply 6 by x+3.
6x+20=4\left(2x-4\right)-9
Add 18 and 2 to get 20.
6x+20=8x-16-9
Use the distributive property to multiply 4 by 2x-4.
6x+20=8x-25
Subtract 9 from -16 to get -25.
6x+20-8x=-25
Subtract 8x from both sides.
-2x+20=-25
Combine 6x and -8x to get -2x.
-2x=-25-20
Subtract 20 from both sides.
-2x=-45
Subtract 20 from -25 to get -45.
x=\frac{-45}{-2}
Divide both sides by -2.
x=\frac{45}{2}
Fraction \frac{-45}{-2} can be simplified to \frac{45}{2} by removing the negative sign from both the numerator and the denominator.