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 - 3a = -a + 6z + 8 for a in terms of z.
| -2\(\frac{1}{2}\)z - 3 | |
| -3z - 2\(\frac{2}{3}\) | |
| -\(\frac{4}{11}\)z + \(\frac{9}{11}\) | |
| -z + 9 |