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 + 4b = 2b - 7x + 9 for b in terms of x.
| -11x + 9 | |
| -1\(\frac{3}{4}\)x + 1\(\frac{1}{8}\) | |
| \(\frac{6}{17}\)x - \(\frac{1}{17}\) | |
| 11x + 9 |