2x+x+2x-5=55
5x-5=55
5x=55+5
5x=60 /:5
x=12
te liczby to: 24 12 19 bo x=12, 2*12=24, a 24-5=19
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2x+x+2x-5=55
5x-5=55
5x=55+5
5x=60 /:5
x=12
te liczby to: 24 12 19 bo x=12, 2*12=24, a 24-5=19