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