Solve for x
x=10
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x\times 30=15\times 20
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 15x, the least common multiple of 15,x.
x\times 30=300
Multiply 15 and 20 to get 300.
x=\frac{300}{30}
Divide both sides by 30.
x=10
Divide 300 by 30 to get 10.
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