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