When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve 3a + 8a = 2a + 9x + 1 for a in terms of x.
| 3x + 5 | |
| 11x - 1 | |
| x + 1 | |
| -1\(\frac{1}{10}\)x + \(\frac{3}{5}\) |