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Jhonbonovox
@Jhonbonovox
April 2020
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Como resolver o sistema : -3x-2y=8 x-5y=3 ?
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poty
Verified answer
{-3x-2y=8
{ x-5y=3 ----(. 3) ----(I)
{-3x -2y=8
{
+3x-15y = 9
////// -17y = 17 ---> 17y= -17 --->
y = -1
(I) x - 5y = 3 --> x-5(-1)=3 ---> x+5=3 --->
x=3-5 --->
x = -2
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Verified answer
{-3x-2y=8{ x-5y=3 ----(. 3) ----(I)
{-3x -2y=8
{+3x-15y = 9
////// -17y = 17 ---> 17y= -17 ---> y = -1
(I) x - 5y = 3 --> x-5(-1)=3 ---> x+5=3 --->x=3-5 --->x = -2