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 5a - 8a = 2a - 9y + 1 for a in terms of y.
| \(\frac{3}{5}\)y + \(\frac{4}{5}\) | |
| -\(\frac{1}{5}\)y - \(\frac{2}{15}\) | |
| -\(\frac{1}{3}\)y + \(\frac{1}{3}\) | |
| \(\frac{1}{3}\)y + \(\frac{2}{3}\) |