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 - 9c = 3c - 9x + 8 for c in terms of x.
| -13x - 8 | |
| x - 8 | |
| \(\frac{1}{2}\)x - \(\frac{5}{6}\) | |
| \(\frac{1}{4}\)x - \(\frac{1}{8}\) |