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