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 -6a + 7a = -a - y + 1 for a in terms of y.
| 1\(\frac{3}{5}\)y - \(\frac{1}{5}\) | |
| -\(\frac{5}{12}\)y - \(\frac{3}{4}\) | |
| 2\(\frac{1}{5}\)y - 1\(\frac{1}{5}\) | |
| y + 4 |