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 2a + 7a = -7a - 2y - 3 for a in terms of y.
| 1\(\frac{1}{5}\)y + \(\frac{1}{5}\) | |
| 4y + 8 | |
| 1\(\frac{6}{7}\)y - \(\frac{1}{7}\) | |
| -y - \(\frac{1}{3}\) |