2x+3y=5 7x-4y=3 tentukan nilai x dan y jawab melalui metode subtitusi

2x+3y=5 ---(1)
7x-4y=3 ---(2)
[Jawab]
(1) × 4 = 8x+12y=20 ---(1)'
(2) × 3 = 21x-12y=9 ---(2)'
---------------------- +
29x = 29
x = 1
Masukan ke (1)
2 + 3y = 5
3y = 5 - 2
3y = 3
y = 1
Jadi,(x,y) = (1,1)
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Maaf kalo jawabannya salah

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