x+x+x+x is Equal to 4x.

4x=x+x+xx

Explanation:

When you see x+x+x+x, you’re actually Adding the value of x to itself four times.

So x+x is equal to 2x because you’re adding two equal things (two x). Similarly, x+x+x equals 3x because you’re adding three of the same thing (three x’s).

When you have x+x+x+x, it’s like adding x+x and then adding x+x again, which equals 2x+2x, or simply 4x.
So,

x+x+x+x is equal to 4x.

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