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