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3\times 3\left(5x-6\right)=12x-2\times 7\left(1-2x\right)
Multiply both sides of the equation by 12, the least common multiple of 4,6.
9\left(5x-6\right)=12x-2\times 7\left(1-2x\right)
Multiply 3 and 3 to get 9.
45x-54=12x-2\times 7\left(1-2x\right)
Use the distributive property to multiply 9 by 5x-6.
45x-54=12x-14\left(1-2x\right)
Multiply -2 and 7 to get -14.
45x-54=12x-14+28x
Use the distributive property to multiply -14 by 1-2x.
45x-54=40x-14
Combine 12x and 28x to get 40x.
45x-54-40x=-14
Subtract 40x from both sides.
5x-54=-14
Combine 45x and -40x to get 5x.
5x=-14+54
Add 54 to both sides.
5x=40
Add -14 and 54 to get 40.
x=\frac{40}{5}
Divide both sides by 5.
x=8
Divide 40 by 5 to get 8.