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 = -5b - 7z - 4 for b in terms of z.
| z - 4\(\frac{1}{2}\) | |
| -z - 5 | |
| -1\(\frac{7}{8}\)z - \(\frac{1}{2}\) | |
| -13z + 6 |