Respuesta :

emmyp1661
Answer: B

Explanation:

Since X + 6 = 45 you subtract 6 from both sides.
X+6 (-6) = 45 (-6)
The +6 and -6 cancel out and you are left with X=45-6

45-6=39
So X=39 (Choice B)
X+6=45
X=45-6
X=39
La réponse est le B

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