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 + 9c = -6c + 7y + 9 for c in terms of y.
| -\(\frac{7}{10}\)y + \(\frac{3}{5}\) | |
| 1\(\frac{1}{8}\)y - 1 | |
| y - 1\(\frac{2}{7}\) | |
| y - 4\(\frac{1}{2}\) |