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 + 9b = 4b - 2z + 9 for b in terms of z.
| -1\(\frac{2}{7}\)z + \(\frac{1}{7}\) | |
| -\(\frac{1}{5}\)z + 1\(\frac{2}{5}\) | |
| -2\(\frac{3}{4}\)z + 2\(\frac{1}{4}\) | |
| \(\frac{1}{18}\)z - \(\frac{1}{6}\) |