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 -9a - a = 8a + 8z + 3 for a in terms of z.
| z + \(\frac{2}{7}\) | |
| -\(\frac{9}{17}\)z - \(\frac{3}{17}\) | |
| -1\(\frac{1}{5}\)z - \(\frac{7}{10}\) | |
| -\(\frac{4}{5}\)z + \(\frac{1}{5}\) |