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 7c + 4c = -9c + 6x - 9 for c in terms of x.
| 1\(\frac{1}{14}\)x + \(\frac{5}{14}\) | |
| -\(\frac{2}{7}\)x + \(\frac{5}{7}\) | |
| \(\frac{1}{8}\)x - \(\frac{9}{16}\) | |
| \(\frac{1}{7}\)x + \(\frac{4}{7}\) |