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 - 3b = 2b - 3z - 4 for b in terms of z.
| 2\(\frac{1}{5}\)z + 1\(\frac{2}{5}\) | |
| z - 4 | |
| -3z - 9 | |
| 4z - 7 |