Through rounding:
If 2 (both of them) has been rounded down from 2.4, then we are left with 2.4 plus 2.4, which equals 4.8. This would then be rounded up to 5.
Therefore, through rounding, 2+2=5. Or at least it can.
This gave rise to the phrase "2+2=5...for extremely large values of '2'".
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5050
2 + 3 = 5
25
2 radical 30
This equation is not possible. Two plus three plus four plus five does not equal 287. The system has no solution.