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 -9c - 7c = 7c + 3x + 7 for c in terms of x.
| -\(\frac{3}{8}\)x - \(\frac{5}{8}\) | |
| -\(\frac{5}{8}\)x - \(\frac{7}{16}\) | |
| -1\(\frac{1}{4}\)x - 2\(\frac{1}{4}\) | |
| 1\(\frac{4}{5}\)x - \(\frac{3}{5}\) |