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