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