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 -6a - 5a = -8a + 7z - 9 for a in terms of z.
| 6z - 4\(\frac{1}{2}\) | |
| z + \(\frac{9}{14}\) | |
| 5z - 6 | |
| 2z + \(\frac{4}{5}\) |