You combine like terms if there are any on either side of the equal sign
Example: 4x + 3x + 5 = 8x + 2 + 3x
4x + 3x = 7x
7x + 5 = 8x + 2 + 3x
8x + 3x = 11x
7x + 5 = 11x + 2 <-- that would be the equation once all like terms are combined
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