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 - 7z - 9 for a in terms of z.
| -\(\frac{3}{11}\)z + \(\frac{1}{11}\) | |
| -\(\frac{5}{14}\)z - \(\frac{3}{7}\) | |
| \(\frac{1}{2}\)z + 3 | |
| -\(\frac{1}{17}\)z - \(\frac{9}{17}\) |