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 - 9b = b - 8z - 9 for b in terms of z.
| z - \(\frac{7}{13}\) | |
| \(\frac{2}{7}\)z + \(\frac{1}{7}\) | |
| \(\frac{1}{4}\)z - 2\(\frac{1}{4}\) | |
| \(\frac{2}{5}\)z + \(\frac{3}{10}\) |