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Lalap168
@Lalap168
October 2019
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Resolva com distributiva : 7.(-x-4)=-4.(x-6)+4
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LaiaRodrigues
7.(-x-4) = -4.(x-6) + 4
-7x - 28 = -4x + 24 + 4
-7x + 4x = 28 + 28
-3x = 56.(-1)
3x = - 56
x = -56/3
x = -18,7
bons estudos!!
1 votes
Thanks 1
vnauhr
7(-x-4)=-4(x-6)+4
-7x-28 = -4x+24+4
-7x+4x = 28+28
-3x = 56
-x = 56/3 multiplica por -1, já que x não pode ser negativo
0 votes
Thanks 2
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Lista de comentários
-7x - 28 = -4x + 24 + 4
-7x + 4x = 28 + 28
-3x = 56.(-1)
3x = - 56
x = -56/3
x = -18,7
bons estudos!!
-7x-28 = -4x+24+4
-7x+4x = 28+28
-3x = 56
-x = 56/3 multiplica por -1, já que x não pode ser negativo