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