Algebraically. X = integers.
X + (X + 2) + (X + 4) = 42
3X + 6 = 42
3X = 36
X = 12
X + 2 = 14
X + 4 = 16
12 + 14 + 16 = 42
-----------------------------so,
(12, 14, 16)
----------------------solution set
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