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 -6a - 9a = -8a - z - 8 for a in terms of z.
| 4z - 4 | |
| \(\frac{1}{10}\)z + \(\frac{2}{5}\) | |
| \(\frac{3}{11}\)z - \(\frac{3}{11}\) | |
| -z - \(\frac{7}{10}\) |