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 + 6b = -5b + z + 7 for b in terms of z.
| -3z + 1 | |
| \(\frac{3}{10}\)z - \(\frac{1}{2}\) | |
| -\(\frac{5}{14}\)z + \(\frac{1}{2}\) | |
| \(\frac{1}{9}\)z - \(\frac{2}{9}\) |