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 + 9a = -4a - 3x + 3 for a in terms of x.
| -6x - 9 | |
| -5x - 4 | |
| -12x + 3 | |
| 2\(\frac{3}{5}\)x - 1 |