berapa hasil eliminasi x-2y=8 5x+3y=1?
Matematika
rendy356
Pertanyaan
berapa hasil eliminasi x-2y=8 5x+3y=1?
1 Jawaban
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1. Jawaban Selisna
x-2y=8 | ×5
5x+3y=1 | ×1
_____________
5x-10y=40
5x+3y=1
___________ _
-13y=39
y=39/(-13)
y=-2
subtitusi nilai y=-2 ke...(1)
x-2y=8
x-2(-2)=8
x+4=8
x=8-4
x=4
jdi, nilai x=4 & y=-2