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 - z + 3 for b in terms of z.
| -\(\frac{1}{6}\)z + \(\frac{3}{4}\) | |
| 6\(\frac{1}{2}\)z + 3\(\frac{1}{2}\) | |
| 1\(\frac{4}{9}\)z + \(\frac{5}{9}\) | |
| \(\frac{5}{8}\)z - \(\frac{3}{16}\) |