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 - 6a = -9a + 9x - 9 for a in terms of x.
| 1\(\frac{7}{8}\)x - 1\(\frac{1}{8}\) | |
| -15x - 6 | |
| -\(\frac{7}{12}\)x - \(\frac{5}{12}\) | |
| -11x - 3 |