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 = -4a - 9z - 5 for a in terms of z.
| -z - \(\frac{2}{9}\) | |
| 3\(\frac{1}{2}\)z + 4 | |
| -\(\frac{3}{5}\)z + \(\frac{4}{5}\) | |
| -3\(\frac{1}{2}\)z - 2\(\frac{1}{2}\) |