Combining Like Terms
To solve this, we can combine like terms to get the answer. In mathematics, like terms are numbers that can be added if they are alike. For example, 3x+2x-3+2. 3x+2x are like terms to each other, while 3+2 are like terms. So the answer to that would be 5x-5. This problem cannot be done because 5x and 5 are not like terms.
Step By Step Answer
First, to solve, we must combine the like terms. Since they are all like terms, it will be pretty simple and quick.
We can start with 3x-x. 3x - x = 2x. The equation is now 2x+7x-4x. We can now do 2x+7x. 2x+7x = 9x. The equation is now 9x-4x. 9x-4x = 5x. This means that the answer is 5x.