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 9b - 9b = 4b - 7z + 3 for b in terms of z.
| z - 9 | |
| \(\frac{1}{3}\)z + \(\frac{5}{6}\) | |
| \(\frac{2}{5}\)z + \(\frac{3}{5}\) | |
| -8z - 9 |