Solve for x
x=15
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4\times 12+12=4x
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 x,4x.
48+12=4x
Multiply 4 and 12 to get 48.
60=4x
Add 48 and 12 to get 60.
4x=60
Swap sides so that all variable terms are on the left hand side.
x=\frac{60}{4}
Divide both sides by 4.
x=15
Divide 60 by 4 to get 15.
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