Solve for x
x=30
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x\times 4=12\times 10
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 12x, the least common multiple of 12,x.
x\times 4=120
Multiply 12 and 10 to get 120.
x=\frac{120}{4}
Divide both sides by 4.
x=30
Divide 120 by 4 to get 30.
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