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 4a + 5a = 9a + 9x + 8 for a in terms of x.
| -1\(\frac{2}{11}\)x - \(\frac{3}{11}\) | |
| -\(\frac{10}{11}\)x + \(\frac{6}{11}\) | |
| -\(\frac{4}{5}\)x - 1\(\frac{3}{5}\) | |
| -\(\frac{6}{13}\)x + \(\frac{1}{13}\) |