1/2= x/ x+3
1/2 = x/(x+3)
Z. x+3 =/= 0 => x=/= -3
(x+3)*1 = 2*x
x+3 = 2x
3=x
1/2=x/x+3 /*x+3
1/2(x+3)=x
1/2x +3/2 = x
3/2=x - 1/2x
3/2=1/2 x /*2
odp x=3
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1/2 = x/(x+3)
Z. x+3 =/= 0 => x=/= -3
(x+3)*1 = 2*x
x+3 = 2x
3=x
1/2=x/x+3 /*x+3
1/2(x+3)=x
1/2x +3/2 = x
3/2=x - 1/2x
3/2=1/2 x /*2
3=x
odp x=3