Solve for x
x=45
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5\times 72=8x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 5x, the least common multiple of x,5.
360=8x
Multiply 5 and 72 to get 360.
8x=360
Swap sides so that all variable terms are on the left hand side.
x=\frac{360}{8}
Divide both sides by 8.
x=45
Divide 360 by 8 to get 45.
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