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Mathematics 17 Online
OpenStudy (anonymous):

2+2

OpenStudy (anonymous):

seriously? 2+2=4

OpenStudy (anonymous):

2+2+4

OpenStudy (anonymous):

\(2 = 1+1\) by definition. Thus, we have \(2 + (1+1)\). By associativity of addition, we can rewrite \((2+1)+1\). By definition, \(2+1=3\), thus we have \(3+1\). By definition, \(3+1=4\). Hence, we have \(2+2=4\).

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