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