-40
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Algebraically. X = integers.
X + (X + 2) = - 42
2X + 2 = - 42
2X = - 44
X = - 22
X + 2 = - 20
(- 20, - 22 )
---------------------solution set
12 + 14 + 16 = 42
They are 12, 14 and 16.
12, 14, 16
Two examples are: 12, 14, 16 or 20, 22
13+14+15 = 42