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