Solve for x
x=\frac{3}{4}=0.75
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5+4=12x
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 4x,x.
9=12x
Add 5 and 4 to get 9.
12x=9
Swap sides so that all variable terms are on the left hand side.
x=\frac{9}{12}
Divide both sides by 12.
x=\frac{3}{4}
Reduce the fraction \frac{9}{12} to lowest terms by extracting and canceling out 3.
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