Rozwiąz równania a)2x/5=x+1/3+2 b)2x-3/4=1/2+x c)x+2/9+x-1/3=1 d)2x+3/5=2-x/3+x
a)2x/5=x+1/3+2 //*15
6x=15x+5+30
6x-15x=35
-9x=35
x=-35/9
x=- 3 8/9
b)2x-3/4=1/2+x //*4
8x-3=2+4x
8x-4x=2+3
4x=5
x=5/4
x=1 1/4
c)x+2/9+x-1/3=1 //*9
9x+2+9x-3=9
18x-1=9
18x=9+1
18x=10
x=10/18
x=5/9
d)2x+3/5=2-x/3+x //*15
30x+9=30-5x+15x
30x+9=30+10x
30x-10x=30-9
20x=21
x=21/20
x=1 1/20
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a)2x/5=x+1/3+2 //*15
6x=15x+5+30
6x-15x=35
-9x=35
x=-35/9
x=- 3 8/9
b)2x-3/4=1/2+x //*4
8x-3=2+4x
8x-4x=2+3
4x=5
x=5/4
x=1 1/4
c)x+2/9+x-1/3=1 //*9
9x+2+9x-3=9
18x-1=9
18x=9+1
18x=10
x=10/18
x=5/9
d)2x+3/5=2-x/3+x //*15
30x+9=30-5x+15x
30x+9=30+10x
30x-10x=30-9
20x=21
x=21/20
x=1 1/20
licze na naj