Pilneee! :) Rozwiąż równania: a) x/5-2/3+1 1/2=x/10-3/5- 2x/3 /- kreska ułamkowa jakby co :D b) 1/20-3x/2+2 1/5=x/4-7/5 Prosze! :P
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a) x/5-2/3+1 1/2=x/10-3/5- 2x/3
x/5-2/3+3/2=x/10-3/5-2x/3
x/5-4/6+9/6=x/10-3/5-2x/3
x/5+5/6=x/10-3/5-2x/3 //*30
6x+25=3x-18-20x
6x+25=-17x-18
6x+17x=-18-25
23x=- 43
x=-43/23
x=- 1 20/23
b) 1/20-3x/2+2 1/5=x/4-7/5
1/20-3x/2+11/5=x/4-7/5 //*20
1-30x+44=5x-28
-30x+45=5x-28
-30x-5x=-28-45
-35x=- 73
x=73/35
x=2 3/35
licze na naj