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 2c + 8c = c - 6y + 9 for c in terms of y.
| -1\(\frac{7}{8}\)y - 1\(\frac{1}{8}\) | |
| -4y + 3 | |
| \(\frac{1}{5}\)y - \(\frac{4}{5}\) | |
| -14y + 9 |