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Matematika WajibPersamaan Mutlak X SMA
Pembahasan :
|x - 1| + |2x| + |3x + 1| = 6
x - 1 + 2x + 3x + 1 = 6
6x = 6
x = 1
x - 1 + 2x + 3x + 1 = -6
6x = -6
x = -1
Hp : {-1 , 1}