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 - 3a = -4a + 4y + 1 for a in terms of y.
| 4\(\frac{1}{2}\)y - 3\(\frac{1}{2}\) | |
| -\(\frac{1}{4}\)y + \(\frac{1}{4}\) | |
| 3\(\frac{1}{2}\)y + \(\frac{1}{2}\) | |
| \(\frac{3}{10}\)y - \(\frac{1}{5}\) |