(2) Respostas
10x-5x-6-(2x-3x+2) = 10x-5x-6-2x+3x-2 = 10x-5x-2x+3x-6-2 = -6-2 = -8
a)10x-(5x+6)-[2x-(3x-2)]= 10x-5x+6-[2x-3x-2]= 10x-5x+6-[-x-2]= 10x-5x+6+x+2= 10x-5x+x= -2-6 5x+x= -8 6x= -8
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10x-5x-6-(2x-3x+2) = 10x-5x-6-2x+3x-2 = 10x-5x-2x+3x-6-2 = -6-2 = -8
a)10x-(5x+6)-[2x-(3x-2)]= 10x-5x+6-[2x-3x-2]= 10x-5x+6-[-x-2]= 10x-5x+6+x+2= 10x-5x+x= -2-6 5x+x= -8 6x= -8