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 -9b - b = 7b - 2z - 1 for b in terms of z.
| z - 4 | |
| \(\frac{10}{13}\)z - \(\frac{3}{13}\) | |
| \(\frac{1}{16}\)z + \(\frac{1}{16}\) | |
| z + 3 |