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 -4a + 7a = 4a - y - 4 for a in terms of y.
| 1\(\frac{3}{4}\)y - \(\frac{1}{2}\) | |
| \(\frac{2}{7}\)y - \(\frac{3}{14}\) | |
| 1\(\frac{1}{7}\)y + \(\frac{5}{14}\) | |
| y + \(\frac{1}{2}\) |