September 2018 1 92 Report
Himpunan penyelesaian dari sistem persamaan
\left \{ {{x+y=7} \atop { x^{2} + y^{2}=25}} \right. adalah {(x1,y1), (x2,y2)}.
Nilai x1+x2 adalah ...

Tlong bantuannya..mksh:)
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