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 = -4a + 2y - 5 for a in terms of y.
| -2\(\frac{2}{3}\)y + 1\(\frac{2}{3}\) | |
| 8y - 5 | |
| 2\(\frac{2}{5}\)y - 1\(\frac{4}{5}\) | |
| -4y - 7 |