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18x+3=2\left(4\times 3+1\right)x-1
Multiply both sides of the equation by 6, the least common multiple of 2,3,6.
18x+3=2\left(12+1\right)x-1
Multiply 4 and 3 to get 12.
18x+3=2\times 13x-1
Add 12 and 1 to get 13.
18x+3=26x-1
Multiply 2 and 13 to get 26.
18x+3-26x=-1
Subtract 26x from both sides.
-8x+3=-1
Combine 18x and -26x to get -8x.
-8x=-1-3
Subtract 3 from both sides.
-8x=-4
Subtract 3 from -1 to get -4.
x=\frac{-4}{-8}
Divide both sides by -8.
x=\frac{1}{2}
Reduce the fraction \frac{-4}{-8} to lowest terms by extracting and canceling out -4.