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6x+2 = 4x- 12 Di kali silang
6x-4x = -12-2
2x = -14
X = -7
perkalian silang 2(3x+1) = 4(x-3)
6x + 2 = 4x - 12
6x - 4x= -12 -2
2 x = -14
x = - 7