Rozwiąż równanie : 72 :(x + 3 ) - 2 = 7
72/x+3 - 2 =7
72/x+3 -2 - 7=0
72-2(x+3)-7(x+3)=0
72-2x-6-7x-21=0
-9x+55=0
-9x=-55/:(-9)
x=55/9
x=6 i 1/9
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72/x+3 - 2 =7
72/x+3 -2 - 7=0
72-2(x+3)-7(x+3)=0
72-2x-6-7x-21=0
-9x+55=0
-9x=-55/:(-9)
x=55/9
x=6 i 1/9