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 - 6a = 8a + 7x - 8 for a in terms of x.
| 5x + 1\(\frac{1}{2}\) | |
| 9x + 8 | |
| \(\frac{3}{13}\)x - \(\frac{6}{13}\) | |
| 13x - 8 |