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 5a + 4a = -8a + 6x - 8 for a in terms of x.
| \(\frac{2}{13}\)x - \(\frac{8}{13}\) | |
| \(\frac{1}{8}\)x + \(\frac{1}{2}\) | |
| \(\frac{1}{3}\)x - 1\(\frac{1}{2}\) | |
| \(\frac{1}{2}\)x + \(\frac{1}{7}\) |