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Damavoy
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ajutati-ma va rog frumos
2(x+1)=8
3(x+2)=2x+5
5(2x-4)=3(4x+2)
2(3x-1,6)-3=3x+1

Răspuns :

Angelli
2(x+1)=8 => 2x+2=8 => 2x=6 => x=3
3(x+2)=2x+5 => 3x+6=2x+5 => x=-1
5(2x-4)=3(4x+2) => 10x-20=12x+6 => -14=2x => x = -7
2(3x-1,6)-3=3x+1 => 6x-3,2-3=3x+1 => 6x-6,2=3x+1 => 3x=7,2 => x =2,4
2x+2=8 <=> x=6/2 =3
3x+6=2x+5 <=> x=-1
10x+20=12x+6 <=> 2x=14 <=> x=7
6x-3,2 -3=3x+1 <=> 3x=7,2 <=> x=2,4

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