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a) (3x-5)/2 - (5x-1)/10 = 0 mnoże przez dwa
3x-5-(5x-1)/5=0 teraz mnoże przez 5
15x-25+5x=0
20x=25 /20
x=5/4
b) x/2 = 2/5 * (4-x) -4
c) (2x-1)/5 - (x-2)/2 = 0,7x
d) 2x-(3x+5)/4 = - ¼x-1
DAJE NAJ
15x-25-5x+1=0
10x=24
x=2,4
b) x/2 = 2/5 * (4-x) -4 /*10
5x=16-4x-4
9x=12
x=1,(3)
c) (2x-1)/5 - (x-2)/2 = 0,7x
(2x-1)/5 - (x-2)/2 = 7/10x /*10
4x-2-5x+10=7x
-8x=-8
x=1
d) 2x-(3x+5)/4 = - ¼x-1 /*4
8x-3x-5=-x-4
6x=1
x=1/6