Solve for x
x = \frac{56}{15} = 3\frac{11}{15} \approx 3.733333333
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7x+8x=56
Multiply both sides of the equation by 56, the least common multiple of 8,7.
15x=56
Combine 7x and 8x to get 15x.
x=\frac{56}{15}
Divide both sides by 15.
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