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 4b + 8b = -6b + 7z + 4 for b in terms of z.
| 7z + 2 | |
| -\(\frac{1}{10}\)z + \(\frac{2}{5}\) | |
| 2\(\frac{1}{2}\)z + \(\frac{1}{2}\) | |
| -2z + 2 |