Solve for x
x = \frac{455}{12} = 37\frac{11}{12} \approx 37.916666667
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5x+7x=455
Multiply both sides of the equation by 35, the least common multiple of 7,5.
12x=455
Combine 5x and 7x to get 12x.
x=\frac{455}{12}
Divide both sides by 12.
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