Soal psldv eliminasi dan subtitusi 2X - Y = 14 X + 3Y = 0
Matematika
rezaaroha
Pertanyaan
Soal psldv eliminasi dan subtitusi
2X - Y = 14
X + 3Y = 0
2X - Y = 14
X + 3Y = 0
1 Jawaban
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1. Jawaban missdiyun
metode ELIMINASI
2X - Y = 14 ..... ( ×1)
X + 3Y = 0 ...... (×2)
..
2x - y = 14
2x + 6y = 0
----------------- --
- 7y = 14
y = 14/-7
y = -2
y = -2 SUBTITUSI ke 2x - y = 14
2x -(-2) = 14
2x + 4 = 14
2x = 14 - 4
2x = 10
x = 10/2
x = 5
jadi x = 5 dan y = -2