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