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