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 b + 7b = 4b + 2x - 4 for b in terms of x.
| -\(\frac{3}{4}\)x - 1\(\frac{1}{2}\) | |
| -\(\frac{15}{16}\)x + \(\frac{9}{16}\) | |
| 1\(\frac{2}{3}\)x + 1\(\frac{1}{3}\) | |
| -\(\frac{1}{6}\)x - \(\frac{5}{6}\) |