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 + 7a = -8a + x - 5 for a in terms of x.
| -x + 1 | |
| -\(\frac{7}{9}\)x - \(\frac{4}{9}\) | |
| -\(\frac{6}{11}\)x - \(\frac{5}{11}\) | |
| -1\(\frac{2}{3}\)x + \(\frac{1}{2}\) |