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 + 9b = -7b + 9z + 2 for b in terms of z.
| -\(\frac{1}{9}\)z + \(\frac{2}{3}\) | |
| 11z + 8 | |
| -\(\frac{1}{2}\)z - \(\frac{3}{4}\) | |
| z - 1 |