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 = 8b - 5x - 7 for b in terms of x.
| 1\(\frac{1}{13}\)x + \(\frac{7}{13}\) | |
| -\(\frac{1}{9}\)x + \(\frac{1}{9}\) | |
| \(\frac{3}{4}\)x + \(\frac{5}{12}\) | |
| -2x - \(\frac{1}{3}\) |