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