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