Solve for y
y = \frac{39}{7} = 5\frac{4}{7} \approx 5.571428571
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3\times 13=7y
Variable y cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 3y, the least common multiple of y,3.
39=7y
Multiply 3 and 13 to get 39.
7y=39
Swap sides so that all variable terms are on the left hand side.
y=\frac{39}{7}
Divide both sides by 7.
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