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