12x+5+3x-5 how do you combine this into like terms

Combining like terms are simply solving variable to variable and constant to constant, (15x - 0)  FINAL ANSWER x = 0

You would combine like terms for 12x + 5 +3x - 5 like this:

12x + 3x = 15x
5 - 5 = 0

So the answer to this problem is 15x + 0 or 15x.

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answer:
congruent segments
step-by-step explanation:
congruent segments. take a line, cut it in half, superipose one half over the other half; you'll have congruence.