Solve B=I/2pid

$$B = \frac { I } { 2 \pi d }$$

Solve for I

$$I=2\pi Bd$$

$$d\neq 0$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$\frac{I}{2\pi d}=B$$

The equation is in standard form.

$$\frac{1}{2\pi d}I=B$$

Divide both sides by \frac{1}{2}\pi ^{-1}d^{-1}.

$$\frac{\frac{1}{2\pi d}I\times 2\pi d}{1}=\frac{B\times 2\pi d}{1}$$

Dividing by \frac{1}{2}\pi ^{-1}d^{-1} undoes the multiplication by \frac{1}{2}\pi ^{-1}d^{-1}.

$$I=\frac{B\times 2\pi d}{1}$$

Divide B by \frac{1}{2}\pi ^{-1}d^{-1}.

$$I=2\pi Bd$$

Solve for B

$$B=\frac{I}{2\pi d}$$

$$d\neq 0$$