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 + 10a = -a - 9y - 2 for a in terms of y.
| -1\(\frac{7}{8}\)y - 1 | |
| 5y - 1 | |
| -19y - 2 | |
| \(\frac{1}{4}\)y + 2\(\frac{1}{4}\) |