Solve for x
x=63
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9x-7x=126
Multiply both sides of the equation by 63, the least common multiple of 7,9.
2x=126
Combine 9x and -7x to get 2x.
x=\frac{126}{2}
Divide both sides by 2.
x=63
Divide 126 by 2 to get 63.
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