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 5b + 9b = -5b + 4z + 8 for b in terms of z.
| -1\(\frac{1}{5}\)z - 1\(\frac{1}{5}\) | |
| -12z + 6 | |
| -\(\frac{1}{2}\)z + \(\frac{4}{5}\) | |
| 13z - 9 |