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