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 6b - 7b = 7b - 5z - 1 for b in terms of z.
| -2z + 1 | |
| -\(\frac{1}{8}\)z - 1 | |
| -\(\frac{3}{4}\)z - \(\frac{1}{8}\) | |
| -10z - 1 |