zad.2 rozwiąż równanie: a).[4+x]=3 b).2(5x+2)+20x=15x-16 +5x c).(x+4)do pot.2+14=(x-2)do pot.2 +2
a) [4+x]=3
4+x=3
x=3-4
x=-1
b).
2(5x+2)+20x=15x-16 +5x
10x+4+20x=20x-16
30x-20x=-16-4
10x=-20
x=-2
c).
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a) [4+x]=3
4+x=3
x=3-4
x=-1
b).
2(5x+2)+20x=15x-16 +5x
10x+4+20x=20x-16
30x-20x=-16-4
10x=-20
x=-2
c).