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6\left(2x-1\right)+4\left(2x+3\right)=2\left(x+1\right)-\left(x-1\right)+9x
Multiply both sides of the equation by 12, the least common multiple of 2,3,6,12,4.
12x-6+4\left(2x+3\right)=2\left(x+1\right)-\left(x-1\right)+9x
Use the distributive property to multiply 6 by 2x-1.
12x-6+8x+12=2\left(x+1\right)-\left(x-1\right)+9x
Use the distributive property to multiply 4 by 2x+3.
20x-6+12=2\left(x+1\right)-\left(x-1\right)+9x
Combine 12x and 8x to get 20x.
20x+6=2\left(x+1\right)-\left(x-1\right)+9x
Add -6 and 12 to get 6.
20x+6=2x+2-\left(x-1\right)+9x
Use the distributive property to multiply 2 by x+1.
20x+6=2x+2-x-\left(-1\right)+9x
To find the opposite of x-1, find the opposite of each term.
20x+6=2x+2-x+1+9x
The opposite of -1 is 1.
20x+6=x+2+1+9x
Combine 2x and -x to get x.
20x+6=x+3+9x
Add 2 and 1 to get 3.
20x+6=10x+3
Combine x and 9x to get 10x.
20x+6-10x=3
Subtract 10x from both sides.
10x+6=3
Combine 20x and -10x to get 10x.
10x=3-6
Subtract 6 from both sides.
10x=-3
Subtract 6 from 3 to get -3.
x=\frac{-3}{10}
Divide both sides by 10.
x=-\frac{3}{10}
Fraction \frac{-3}{10} can be rewritten as -\frac{3}{10} by extracting the negative sign.