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 + 9b = 6b + 2x - 4 for b in terms of x.
| -\(\frac{5}{14}\)x + \(\frac{3}{14}\) | |
| -1\(\frac{5}{7}\)x - \(\frac{4}{7}\) | |
| 2x + 2 | |
| \(\frac{7}{9}\)x + \(\frac{4}{9}\) |