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 -7a - 2a = 8a + 3y + 7 for a in terms of y.
| -\(\frac{1}{3}\)y - \(\frac{7}{15}\) | |
| -\(\frac{2}{9}\)y + \(\frac{2}{9}\) | |
| 1\(\frac{6}{11}\)y - \(\frac{8}{11}\) | |
| -\(\frac{9}{10}\)y + \(\frac{1}{2}\) |