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 -2a - 2a = 8a - z - 2 for a in terms of z.
| -\(\frac{1}{10}\)z + \(\frac{1}{5}\) | |
| 1\(\frac{1}{3}\)z + \(\frac{1}{3}\) | |
| -5\(\frac{1}{2}\)z - 2 | |
| 2z - 1\(\frac{1}{3}\) |