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 -a - 2a = 4a + 3z - 5 for a in terms of z.
| -z + 1 | |
| \(\frac{1}{12}\)z - \(\frac{1}{2}\) | |
| \(\frac{1}{8}\)z + \(\frac{3}{4}\) | |
| -\(\frac{2}{15}\)z - \(\frac{1}{15}\) |