Solve for x
x=9
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3\times 3x-x=72
Multiply both sides of the equation by 6, the least common multiple of 2,6.
9x-x=72
Multiply 3 and 3 to get 9.
8x=72
Combine 9x and -x to get 8x.
x=\frac{72}{8}
Divide both sides by 8.
x=9
Divide 72 by 8 to get 9.
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