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Kaka4488
@Kaka4488
December 2019
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Qual o resultado dessa questão?
x-2y=7
3x+y=35
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jjzejunio
X - 2y = 7
3x + y = 35 . (2)
x - 2y = 7
6x + 2y = 70
===========
7x = 77
x = 77/7
x = 11
x - 2y = 7
11 - 2y = 7
-2y = 7 - 11
-2y = -4
y = -4/-2
y = 2
s={ 11, 2 }
☆Espero ter ajudado!
5 votes
Thanks 11
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Lista de comentários
3x + y = 35 . (2)
x - 2y = 7
6x + 2y = 70
===========
7x = 77
x = 77/7
x = 11
x - 2y = 7
11 - 2y = 7
-2y = 7 - 11
-2y = -4
y = -4/-2
y = 2
s={ 11, 2 }
☆Espero ter ajudado!