Solve for R
R=4S
Solve for S
S=\frac{R}{4}
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S=\frac{R}{4}
Calculate the square root of 16 and get 4.
\frac{R}{4}=S
Swap sides so that all variable terms are on the left hand side.
\frac{1}{4}R=S
The equation is in standard form.
\frac{\frac{1}{4}R}{\frac{1}{4}}=\frac{S}{\frac{1}{4}}
Multiply both sides by 4.
R=\frac{S}{\frac{1}{4}}
Dividing by \frac{1}{4} undoes the multiplication by \frac{1}{4}.
R=4S
Divide S by \frac{1}{4} by multiplying S by the reciprocal of \frac{1}{4}.
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