Question 340180
LEt the three integers be A,B, and C.
1.{{{A+B+C=53}}}
2.{{{2A+B+C=67}}}
3.{{{A+2B+C=71}}}
Subtract eq. 1 from eq. 2,
{{{2A+B+C-A-B-C=67-53}}}
{{{highlight(A=14)}}}
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Subtract eq. 1 from eq. 3,
{{{A+2B+C-A-B-C=71-53}}}
{{{highlight(B=18)}}}
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From eq. 1,
{{{14+18+C=53}}}
{{{highlight(C=21)}}}