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 - 3a = 8a + 6z - 8 for a in terms of z.
| -\(\frac{1}{3}\)z - 1 | |
| -\(\frac{9}{14}\)z + \(\frac{4}{7}\) | |
| -1\(\frac{4}{5}\)z - 1\(\frac{4}{5}\) | |
| -\(\frac{2}{9}\)z + \(\frac{7}{9}\) |