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 7b - 5b = 5b + 2z + 6 for b in terms of z.
| z - 4 | |
| -\(\frac{1}{2}\)z + \(\frac{1}{2}\) | |
| 3\(\frac{1}{2}\)z + 3 | |
| \(\frac{1}{7}\)z + \(\frac{1}{14}\) |