5x + 2y = 15 (kali 2) -> 10x + 4y = 30
3x + 4y = 23 (kali 1) -> 3x + 4y = 23
hasil eliminasi: 7x = 7
7x = 7
x = 7/7
x = 1
subtitusi x = 1 ke pers 1
5x + 2y = 15
5(1) + 2y = 15
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5x + 2y = 15 (kali 2) -> 10x + 4y = 30
3x + 4y = 23 (kali 1) -> 3x + 4y = 23
hasil eliminasi: 7x = 7
7x = 7
x = 7/7
x = 1
subtitusi x = 1 ke pers 1
5x + 2y = 15
5(1) + 2y = 15
Editor: Yulia Pramuninggar
Sumber: Buku Matematika Kelas 8 Semester 1
