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