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72\left(1+x\right)=3x-8+x-2
Multiply 6 and 12 to get 72.
72+72x=3x-8+x-2
Use the distributive property to multiply 72 by 1+x.
72+72x=4x-8-2
Combine 3x and x to get 4x.
72+72x=4x-10
Subtract 2 from -8 to get -10.
72+72x-4x=-10
Subtract 4x from both sides.
72+68x=-10
Combine 72x and -4x to get 68x.
68x=-10-72
Subtract 72 from both sides.
68x=-82
Subtract 72 from -10 to get -82.
x=\frac{-82}{68}
Divide both sides by 68.
x=-\frac{41}{34}
Reduce the fraction \frac{-82}{68} to lowest terms by extracting and canceling out 2.