Solve for x
x = \frac{40}{17} = 2\frac{6}{17} \approx 2.352941176
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5x+4\times 3x=40
Multiply both sides of the equation by 20, the least common multiple of 4,5.
5x+12x=40
Multiply 4 and 3 to get 12.
17x=40
Combine 5x and 12x to get 17x.
x=\frac{40}{17}
Divide both sides by 17.
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