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3x+4y=7 [ .2 ] 6x + 8y = 14
y = 1
2x + 3y = 5
2x + 3(1) = 5
2x = 5 - 3
2x = 2
x = 1
3x + 4y = 7 (dikali 2)
6x+9y=15
6x+8y=14(lalu dikurangi)
y=1
lalu mencari nilai x
6x+8y=14
6x+8 = 14
6x = 6
x = 1