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5x-2y=-19|×2|
10x+20y=10
10x-4y=-38 eliminasi
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16y=-28
y=-28/16
y=-1,75
Substitusikan y=-1,75 ke
2x+4y=2
2x+4.(-1,75)=2
2x+(-7)=2
2x=2+7
2x=9
x=9/2
x=4,5
=4,5+4×(-1,75)
=4,5+(-7)
=2,5
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DETIL JAWABAN :
Mapel : Matematika
Kelas : 7
Bab : SPLDV
Jawab:
Penjelasan dengan langkah-langkah: