Question

resolva os sistemas
7x-3y-1=0 2 y x=5

Answer 1

7x - 3y = 1
x + 2y = 5

7x - 3y = 1
-7x -14y = -35

-17y = -34
.....y = -34/-17
.....y = 2

x + 2y = 5
x + 2*2 = 5
x = 5 -4 
x = 1

S={(1,2)}

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02/12/2015
Sepauto - SSRC
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