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3x-6\left(\frac{3x}{6}+\frac{2}{6}\right)-4\left(x-1\right)
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 2 and 3 is 6. Multiply \frac{x}{2} times \frac{3}{3}. Multiply \frac{1}{3} times \frac{2}{2}.
3x-6\times \frac{3x+2}{6}-4\left(x-1\right)
Since \frac{3x}{6} and \frac{2}{6} have the same denominator, add them by adding their numerators.
3x-\left(3x+2\right)-4\left(x-1\right)
Cancel out 6 and 6.
3x-3x-2-4\left(x-1\right)
To find the opposite of 3x+2, find the opposite of each term.
-2-4\left(x-1\right)
Combine 3x and -3x to get 0.
-2-4x+4
Use the distributive property to multiply -4 by x-1.
2-4x
Add -2 and 4 to get 2.
3x-6\left(\frac{3x}{6}+\frac{2}{6}\right)-4\left(x-1\right)
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 2 and 3 is 6. Multiply \frac{x}{2} times \frac{3}{3}. Multiply \frac{1}{3} times \frac{2}{2}.
3x-6\times \frac{3x+2}{6}-4\left(x-1\right)
Since \frac{3x}{6} and \frac{2}{6} have the same denominator, add them by adding their numerators.
3x-\left(3x+2\right)-4\left(x-1\right)
Cancel out 6 and 6.
3x-3x-2-4\left(x-1\right)
To find the opposite of 3x+2, find the opposite of each term.
-2-4\left(x-1\right)
Combine 3x and -3x to get 0.
-2-4x+4
Use the distributive property to multiply -4 by x-1.
2-4x
Add -2 and 4 to get 2.