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 -9a + 8a = 4a + 3x + 2 for a in terms of x.
| 10x + 3 | |
| \(\frac{5}{13}\)x - \(\frac{2}{13}\) | |
| \(\frac{2}{9}\)x + \(\frac{2}{3}\) | |
| -2\(\frac{4}{5}\)x + \(\frac{2}{5}\) |