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 -9a - a = 9a + 9x - 4 for a in terms of x.
| -\(\frac{5}{9}\)x + \(\frac{2}{9}\) | |
| \(\frac{1}{11}\)x + \(\frac{4}{11}\) | |
| -4\(\frac{1}{2}\)x + 1 | |
| 3x + 6 |