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