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didapat y = 2
Y = 2 dimasukkan ke persamaan 2x + y = 22 menjadi 2x + 4(2) = 22
2x + 8 = 22
2x = 14
x= 7
3x - 5y = 11 (x2)
sehingga
6x + 12y = 66
6x - 10y = 22 -
22y = 44
y = 2
cari x, subtitusikan y
3x - 5y = 11
3x - (5x2) = 11
3x - 10 = 11
3x - 10 + 10 = 10 + 11
3x = 21
x = 7
x1 - y1
7 - 2 = 5