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Verified Answer :

syed514

x+y=3   is equal to  2x+2y=6
subtracting the equations 
2x+2y=10 - 2x+2y=6  
which results 0 = 4
which is not possible

HomertheGenius

x + y = 3
2 x + 2 y = 10
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The substitution: y  = 3 - x
2 x + 2 ( 3 - x ) = 10
2 x + 6 - 2 x = 10
0 x = 10 - 6
0 x = 4
There are no solutions for this system of equations.
x , y ∈ ∅ 

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