Question

4x+3y=14 e 5x-2y=0 usando metodo de adição

Answer 1

4x + 3y = 14
5x - 2y = 0 

20x + 15y = 70
-20x +8y = 0

23y = 70 

y = 70/23

4x - 3*(70/23) = 14 

4x - 210/23 = 14

4x = 210/23 + 14

4x = (210 + 322)/14

4x = 532/14 

x =  38 : 4

x = 19/2

S = {(19/2 ; 70/23)}

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07/07/2016
Sepauto - SSRC
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