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