Solve for x
x=32
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5x=4\times 40
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 4x, the least common multiple of 4,x.
5x=160
Multiply 4 and 40 to get 160.
x=\frac{160}{5}
Divide both sides by 5.
x=32
Divide 160 by 5 to get 32.
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