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Supermănka
a fost răspuns

Rezolvați:
3(x-8)=9x
x(x-1)=2x
4x-3=x+2
2x+7=2-3x
x-8=3x
x-1=2
4x-x=2+3
2x+3x=7-2

Răspuns :

3(x-8)=9x => 3x-24=9x=> 6x=-24=>x=-4 x(x-1)=2x=>x^2-x=2x=>x^2-3x=0=>x (×-3)=0=>x1=0;x2=3 4x-3=x+2=>3x=5=>x=5/3 2x+7=2-3x=>5x=-5=>x=-1 x-8=3x=>2x=-8=>x=-4 x-1=2=>x=3 4x-x=2+3=>3x=5=>x=5/3 2x+3x=7-2 =>5x=5=>x=1

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