Solve for x
x=660
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11\times 720=12x
Multiply both sides of the equation by 660, the least common multiple of 60,55.
7920=12x
Multiply 11 and 720 to get 7920.
12x=7920
Swap sides so that all variable terms are on the left hand side.
x=\frac{7920}{12}
Divide both sides by 12.
x=660
Divide 7920 by 12 to get 660.
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