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