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 -5b - 8b = 9b - 9z - 4 for b in terms of z.
| -\(\frac{7}{9}\)z - 1 | |
| \(\frac{1}{14}\)z + \(\frac{2}{7}\) | |
| \(\frac{9}{10}\)z - \(\frac{3}{10}\) | |
| -\(\frac{7}{15}\)z - \(\frac{1}{3}\) |