Solve for x
x=15y
Solve for y
y=\frac{x}{15}
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\frac{x}{15}=y
Swap sides so that all variable terms are on the left hand side.
\frac{1}{15}x=y
The equation is in standard form.
\frac{\frac{1}{15}x}{\frac{1}{15}}=\frac{y}{\frac{1}{15}}
Multiply both sides by 15.
x=\frac{y}{\frac{1}{15}}
Dividing by \frac{1}{15} undoes the multiplication by \frac{1}{15}.
x=15y
Divide y by \frac{1}{15} by multiplying y by the reciprocal of \frac{1}{15}.
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