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4x + 2y = 14
________
4x + 12y = 44
4x + 2y = 14
___________ _
10 y = 30
y = 3
x + 3(3) = 11
x = 11 - 9
x = 2
4x+2y=14 dikalikan 1 4x + 2y = 14 yang bawah
10y = 30
y = 3
x + 3y = 11
x + 3(3) = 11
x + 9 = 11
x = 2