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 -7c + 9c = -8c - y + 4 for c in terms of y.
| 2\(\frac{1}{3}\)y + 1\(\frac{1}{3}\) | |
| -\(\frac{5}{8}\)y - \(\frac{3}{16}\) | |
| \(\frac{1}{10}\)y + \(\frac{1}{2}\) | |
| -10y + 4 |