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 + 5c = c + 2y + 7 for c in terms of y.
| -3y - 3 | |
| -5\(\frac{1}{2}\)y - 3 | |
| \(\frac{10}{11}\)y - \(\frac{5}{11}\) | |
| y - 2\(\frac{1}{3}\) |