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6x-x+42=192
x=30
6x-x+42=192 /-42
5x=150
x=30
(x*6)-(1/6X*6)+(7*6)=(32*6)
6x-x+42=192
5x+42=192
5x=192-42
5x=150
x=150/5
x=30
ta liczba to 30
sprawdzenie
30-1/6*30+7=32
30-30/6+7=32
30-5+7=32
30+2=32
32=32