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 - 8b = -7b - z - 1 for b in terms of z.
| 1\(\frac{3}{4}\)z - \(\frac{1}{4}\) | |
| -\(\frac{1}{6}\)z + \(\frac{1}{6}\) | |
| -\(\frac{1}{6}\)z - \(\frac{1}{3}\) | |
| -z + 7 |