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