rozwiąż równania:
2(x-1)+3x=5(x+2)
0,5(2x-4)-3x+2=0
4x+1/2=5x
2x-1/5 + 1/3 =2x-1
5-3x/2 + x-1/3=4
4+2x=4+5x/7
(x-1)(x+1)=x2+4x
z góry wielkie dzięki!
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