rozwiąż równania.
2(x+1)=x
2x+2=x
2x-x=-2
x=-2
2x+2=x |-x
x+2=0 |-2
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2(x+1)=x
2x+2=x
2x-x=-2
x=-2
2(x+1)=x
2x+2=x |-x
x+2=0 |-2
x=-2