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 8b + 3b = b + 3z + 9 for b in terms of z.
| -\(\frac{4}{17}\)z + \(\frac{4}{17}\) | |
| z + 7 | |
| z + 1\(\frac{2}{7}\) | |
| 10z + 2 |