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