odpowiedz
x
2x
2x+50
x+2x+2x+50=600
5x+50=600 /-50
5x=550 /÷5
x=110
2x=220
2x+50=270
sprawdzenie 270+220+110=600
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odpowiedz
x
2x
2x+50
x+2x+2x+50=600
5x+50=600 /-50
5x=550 /÷5
x=110
x=110
2x=220
2x+50=270
sprawdzenie 270+220+110=600