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 a + 3a = 9a - 4x - 8 for a in terms of x.
| 2\(\frac{1}{2}\)x - \(\frac{5}{6}\) | |
| \(\frac{7}{8}\)x + 1 | |
| x + \(\frac{8}{11}\) | |
| -1\(\frac{1}{2}\)x - 4\(\frac{1}{2}\) |