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 5a + 3a = -5a - x - 1 for a in terms of x.
| -\(\frac{2}{5}\)x - \(\frac{1}{10}\) | |
| -\(\frac{5}{9}\)x - \(\frac{1}{3}\) | |
| -\(\frac{9}{13}\)x - \(\frac{4}{13}\) | |
| -2x + 1 |