November 2018 2 78 Report
Persamaan lianer 2x-5y=15 dan 3x+4y=11 dgn metode gabungan
jawab:
eliminasi
2x-5y=18 |x4|...-20y=...
3x+4y=11 |x5|15x+...=...
------------ (-)
metode subtitusi x=... kepersamaan (1)
2x-5y=15
2(...) -5y=...
...-5y=...
-5y=...-...
-5y=...
y=...
maka hp {(... , ...)}
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