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Pedrohenrique201
@Pedrohenrique201
January 2020
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Resolva as equações :
a) 3/5-7=x+10
b) 4x-1=x/4+1/2
c) -x+2/2=8x+10/4
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IgorLM
a) 3/5-7=x+10
(3 - 35)/5 = x + 10
-32/5 - 10 = x
(-32 - 50)/5 = x
x = -82/5
b) 4x-1=x/4+1/2
4x - x/4 = 1/2 + 1
(16x -x)/4 = (1 + 2)/2
15x/4 = 3/2
15x = 12/2
x = 6/15
x = 3/5
c) -x+2/2=8x+10/4
-x/2 + 1 = 8x + 10/4
(-x/2 + 1)4 = 8x + 10
-4x/2 + 4 = 8x + 10
-2x + 4 = 8x + 10
4 - 10 = 8x + 2x
-6 = 10x
x = -6/10
2 votes
Thanks 1
pedrohenrique201
Muito, muito Obrigado !!! O interessante é que eu sei resolver de 2 grau agora de 1º de jeito nenhum. Mais muito Obrigado mesmo !!!
IgorLM
Capaz, estou a disposição, qualquer coisa pergunte-me ;)
pedrohenrique201
Thanks !!! ;-)
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(3 - 35)/5 = x + 10
-32/5 - 10 = x
(-32 - 50)/5 = x
x = -82/5
b) 4x-1=x/4+1/2
4x - x/4 = 1/2 + 1
(16x -x)/4 = (1 + 2)/2
15x/4 = 3/2
15x = 12/2
x = 6/15
x = 3/5
c) -x+2/2=8x+10/4
-x/2 + 1 = 8x + 10/4
(-x/2 + 1)4 = 8x + 10
-4x/2 + 4 = 8x + 10
-2x + 4 = 8x + 10
4 - 10 = 8x + 2x
-6 = 10x
x = -6/10