Solve for x
x=135
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x\times 30=45\times 90
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 45x, the least common multiple of 45,x.
x\times 30=4050
Multiply 45 and 90 to get 4050.
x=\frac{4050}{30}
Divide both sides by 30.
x=135
Divide 4050 by 30 to get 135.
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