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