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3\left(x-1\right)-2\times 4x-18=2x+6
Multiply both sides of the equation by 6, the least common multiple of 2,3,6.
3x-3-2\times 4x-18=2x+6
Use the distributive property to multiply 3 by x-1.
3x-3-8x-18=2x+6
Multiply -2 and 4 to get -8.
-5x-3-18=2x+6
Combine 3x and -8x to get -5x.
-5x-21=2x+6
Subtract 18 from -3 to get -21.
-5x-21-2x=6
Subtract 2x from both sides.
-7x-21=6
Combine -5x and -2x to get -7x.
-7x=6+21
Add 21 to both sides.
-7x=27
Add 6 and 21 to get 27.
x=\frac{27}{-7}
Divide both sides by -7.
x=-\frac{27}{7}
Fraction \frac{27}{-7} can be rewritten as -\frac{27}{7} by extracting the negative sign.