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3\times 3+3\left(x-1\right)\times \frac{8}{3}=9\left(x-1\right)
Variable x cannot be equal to 1 since division by zero is not defined. Multiply both sides of the equation by 3\left(x-1\right), the least common multiple of x-1,3.
9+3\left(x-1\right)\times \frac{8}{3}=9\left(x-1\right)
Multiply 3 and 3 to get 9.
9+8\left(x-1\right)=9\left(x-1\right)
Multiply 3 and \frac{8}{3} to get 8.
9+8x-8=9\left(x-1\right)
Use the distributive property to multiply 8 by x-1.
1+8x=9\left(x-1\right)
Subtract 8 from 9 to get 1.
1+8x=9x-9
Use the distributive property to multiply 9 by x-1.
1+8x-9x=-9
Subtract 9x from both sides.
1-x=-9
Combine 8x and -9x to get -x.
-x=-9-1
Subtract 1 from both sides.
-x=-10
Subtract 1 from -9 to get -10.
x=10
Multiply both sides by -1.