Solve 245=pi14+2/3R21

$$245 = \pi 14+ \frac{ 2 }{ 3 } R21$$

Solve for R_21

$$R_{21}=\frac{735}{2}-21\pi \approx 301.526554275$$

Steps for Solving Linear Equation

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

$$\pi \times 14+\frac{2}{3}R_{21}=245$$

Subtract \pi \times 14 from both sides.

$$\frac{2}{3}R_{21}=245-\pi \times 14$$

Multiply -1 and 14 to get -14.

$$\frac{2}{3}R_{21}=245-14\pi$$

Divide both sides of the equation by \frac{2}{3}, which is the same as multiplying both sides by the reciprocal of the fraction.

$$\frac{\frac{2}{3}R_{21}}{\frac{2}{3}}=\frac{245-14\pi }{\frac{2}{3}}$$

Dividing by \frac{2}{3} undoes the multiplication by \frac{2}{3}.

$$R_{21}=\frac{245-14\pi }{\frac{2}{3}}$$

Divide 245-14\pi by \frac{2}{3} by multiplying 245-14\pi by the reciprocal of \frac{2}{3}.

$$R_{21}=\frac{735}{2}-21\pi$$