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 a - 5a = 6a - z - 7 for a in terms of z.
| 13z + 2 | |
| \(\frac{1}{2}\)z - \(\frac{9}{14}\) | |
| -\(\frac{4}{5}\)z + 1\(\frac{2}{5}\) | |
| \(\frac{1}{4}\)z - \(\frac{1}{2}\) |