Solve 10R/220000+R=0.7

$$\frac { 10 R } { 220000 + R } = 0.7$$

Solve for R

$$R = \frac{1540000}{93} = 16559\frac{13}{93} \approx 16559.139784946$$

Steps for Solving Linear Equation

Variable R cannot be equal to -220000 since division by zero is not defined. Multiply both sides of the equation by R+220000.

$$10R=0.7\left(R+220000\right)$$

Use the distributive property to multiply 0.7 by R+220000.

$$10R=0.7R+154000$$

Subtract 0.7R from both sides.

$$10R-0.7R=154000$$

Combine 10R and -0.7R to get 9.3R.

$$9.3R=154000$$

Divide both sides by 9.3.

$$R=\frac{154000}{9.3}$$

Expand \frac{154000}{9.3} by multiplying both numerator and the denominator by 10.

$$R=\frac{1540000}{93}$$