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 -6a - 3a = 7a + 9x + 7 for a in terms of x.
| -\(\frac{7}{13}\)x - \(\frac{7}{13}\) | |
| 1\(\frac{8}{9}\)x + \(\frac{2}{3}\) | |
| -\(\frac{12}{13}\)x - \(\frac{7}{13}\) | |
| 1\(\frac{5}{6}\)x + \(\frac{1}{3}\) |