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