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 - 7 for b in terms of z.
| 11z + 2 | |
| -\(\frac{3}{5}\)z - \(\frac{1}{5}\) | |
| \(\frac{1}{2}\)z - 3\(\frac{1}{2}\) | |
| 2\(\frac{1}{3}\)z - 2\(\frac{1}{3}\) |