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 4a + 4a = -9a - 7z + 2 for a in terms of z.
| 3z - 9 | |
| 2\(\frac{3}{5}\)z - 1 | |
| -\(\frac{4}{7}\)z - \(\frac{3}{7}\) | |
| -\(\frac{11}{13}\)z + \(\frac{2}{13}\) |