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 -2a - 4a = -5a - 5y + 1 for a in terms of y.
| y + \(\frac{7}{13}\) | |
| -2y + 1\(\frac{2}{5}\) | |
| -\(\frac{1}{3}\)y + \(\frac{1}{3}\) | |
| 1\(\frac{1}{2}\)y + 1 |