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