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Walisson1703
@Walisson1703
August 2019
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{ 2x +8y = 0 { 9x +6y =15
Ajudem pfv?
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jjzejunio
{2x + 8y = 0
{9x + 6y = 15
===========
2x = -8y
x = -8y/2
9x + 6y = 15
9x = 15 - 6y
x = 15 - 6y/9
x = x
x = -8y/2
x = -8.(-0,5)/2
x = 4/2
x = 2
S={ 2, -0,5 }
1 votes
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{9x + 6y = 15
===========
2x = -8y
x = -8y/2
9x + 6y = 15
9x = 15 - 6y
x = 15 - 6y/9
x = x
x = -8y/2
x = -8.(-0,5)/2
x = 4/2
x = 2
S={ 2, -0,5 }