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 4a - 9a = -6a + 3x + 9 for a in terms of x.
| -\(\frac{7}{13}\)x - \(\frac{3}{13}\) | |
| 1\(\frac{1}{5}\)x + \(\frac{9}{10}\) | |
| -2x - 3 | |
| -2\(\frac{1}{5}\)x + 1\(\frac{1}{5}\) |