Solve 2a_{1}-99/50=20

$$2 a _ { 1 } - \frac { 99 } { 50 } = 20$$

Solve for a_1

$$a_{1} = \frac{1099}{100} = 10\frac{99}{100} = 10.99$$

Steps for Solving Linear Equation

Add \frac{99}{50} to both sides.

$$2a_{1}=20+\frac{99}{50}$$

Convert 20 to fraction \frac{1000}{50}.

$$2a_{1}=\frac{1000}{50}+\frac{99}{50}$$

Since \frac{1000}{50} and \frac{99}{50} have the same denominator, add them by adding their numerators.

$$2a_{1}=\frac{1000+99}{50}$$

Add 1000 and 99 to get 1099.

$$2a_{1}=\frac{1099}{50}$$

Divide both sides by 2.

$$a_{1}=\frac{\frac{1099}{50}}{2}$$

Express \frac{\frac{1099}{50}}{2} as a single fraction.

$$a_{1}=\frac{1099}{50\times 2}$$

Multiply 50 and 2 to get 100.

$$a_{1}=\frac{1099}{100}$$