A) 2ax+4bx-12ax-15bx+4x
B) 10y-4z+3x+12y-20z
C)20aw+6x-12aw-6x
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Organizar por termos semelhantes: A) 2ax+4bx-12ax-15bx+4x 2ax - 12ax +4bx - 15bx +4x => -10ax -11bx + 4x B) 10y-4z+3x+12y-20z 10y + 12y +3x -4z -20z => 24y +3x -24z C)20aw+6x-12aw-6x 20aw -12aw +6x -6x =>8aw
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