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 3b + 8b = 9b + z + 7 for b in terms of z.
| -\(\frac{6}{11}\)z + \(\frac{8}{11}\) | |
| 1\(\frac{1}{6}\)z - 1\(\frac{1}{6}\) | |
| 1\(\frac{1}{2}\)z + 2\(\frac{1}{4}\) | |
| -\(\frac{1}{3}\)z + 3 |