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 + 5c = -8c - 8y + 7 for c in terms of y.
| y - 2 | |
| -\(\frac{11}{13}\)y + \(\frac{9}{13}\) | |
| -\(\frac{13}{15}\)y + \(\frac{7}{15}\) | |
| y - \(\frac{1}{3}\) |