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