4x-(x-3)=5
4x-x+3=5 4x-x=5-3 3x=2 /:3
x=⅔
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4x-x+3=5
3x=2 /3
x=⅔
4x-x+3=5
3x=2 /3
x=2/3(zapisz w ułamku zwykłym)
4x-(x-3)=5
4x-x+3=5
4x-x=5-3
3x=2 /:3
x=⅔