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 - 4c = 5c + 2x - 7 for c in terms of x.
| -\(\frac{3}{7}\)x + \(\frac{1}{2}\) | |
| -x + \(\frac{1}{15}\) | |
| 3x + \(\frac{1}{2}\) | |
| \(\frac{4}{7}\)x + \(\frac{2}{7}\) |