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