Proporcje:Rozwiąż równania
1) 2/x=3/x-1
2)4/x+1=5/x
3)3/5=2x-1/2-5x
4)2x+1/1-2x=2/3
5)0,4-1/3=2x-5/2
6)4+x kwadrat/x=2x-1/2
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1) 2/x=3/x-1
2x-2=3x
-x=2
x=-2
2) 4/x+1=5/x
5x+5=4x
x=-5
3) 3/5=2x-1/2-5x
6-10x=10x-1
-20x= -7
x= 7/20
4)2x+1/1-2x=2/3
6x+3=2-4x
10x=-1
x= -1/10
5) 0,4-1/3=2x-5/2
0,8-2=6x-15
-6x=-15-0,8+2
-6x=-13,8
x= 13,8/6
6) 4+x kwadrat/x=2x-1/2
8+2xkwadrat = 2xkwadrat-x
x= -8
Pozdrawiam ;)