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 -7a - 2a = a + 9x + 5 for a in terms of x.
| -1\(\frac{3}{8}\)x - \(\frac{5}{8}\) | |
| \(\frac{1}{4}\)x - 1\(\frac{3}{4}\) | |
| -\(\frac{6}{7}\)x - \(\frac{1}{7}\) | |
| \(\frac{1}{17}\)x + \(\frac{4}{17}\) |