Solve for x
x=\frac{1}{3}\approx 0.333333333
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1+3\times 4=39x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3x, the least common multiple of 3x,x.
1+12=39x
Multiply 3 and 4 to get 12.
13=39x
Add 1 and 12 to get 13.
39x=13
Swap sides so that all variable terms are on the left hand side.
x=\frac{13}{39}
Divide both sides by 39.
x=\frac{1}{3}
Reduce the fraction \frac{13}{39} to lowest terms by extracting and canceling out 13.
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