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 + 7b = -6b + 7z + 9 for b in terms of z.
| -2z - 2\(\frac{1}{3}\) | |
| -\(\frac{10}{11}\)z + \(\frac{3}{11}\) | |
| z + \(\frac{3}{5}\) | |
| -\(\frac{1}{10}\)z - \(\frac{2}{5}\) |