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 -b - 3b = 4b + 4z - 1 for b in terms of z.
| 2z + 1\(\frac{1}{3}\) | |
| -\(\frac{3}{10}\)z - \(\frac{3}{10}\) | |
| -1\(\frac{1}{5}\)z + \(\frac{2}{5}\) | |
| -1\(\frac{2}{5}\)z + \(\frac{1}{5}\) |