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 7a - 9a = -5a - 4x - 3 for a in terms of x.
| \(\frac{5}{12}\)x - \(\frac{1}{4}\) | |
| x - \(\frac{1}{4}\) | |
| 3x + 5 | |
| -4\(\frac{1}{2}\)x - 3 |