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 6c + 3c = -5c - 7x - 9 for c in terms of x.
| -\(\frac{2}{3}\)x - \(\frac{1}{9}\) | |
| -\(\frac{3}{7}\)x - \(\frac{2}{7}\) | |
| -\(\frac{10}{11}\)x - \(\frac{9}{11}\) | |
| \(\frac{3}{8}\)x - \(\frac{1}{4}\) |