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 8a + 5a = a + 6x + 6 for a in terms of x.
| -2x - 2 | |
| \(\frac{1}{6}\)x - \(\frac{7}{12}\) | |
| 1\(\frac{1}{2}\)x - \(\frac{1}{6}\) | |
| \(\frac{1}{7}\)x + \(\frac{6}{7}\) |