tolong jawab secepatnya
Matematika
agus1217
Pertanyaan
tolong jawab secepatnya
1 Jawaban
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1. Jawaban roisarifah
A=B
3x+2y = 1
2x+5y = 8
¤ eliminasi
×2 | 6x+4y = 2
×3 | 6x+15y = 24
-11y = -22
y = 2
¤ substitusi
3x+2y = 1
3x+ 2×2 = 1
3x + 4 = 1
3x = 1-4
3x = -3
x = -1
¤ nilai 5x+6y = 5×(-1) + 6×2 = -5+12 = 7
*)semoga membantu... ^.^