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p in (-oo:+oo)
(3/7)*(2*p-14) > (6/7)*p-6 // - (6/7)*p-6
(3/7)*(2*p-14)-((6/7)*p)+6 > 0
(3/7)*(2*p-14)+(-6/7)*p+6 > 0
3/7*(2*p-14)+(-6*p)/7+6 > 0
(3/7*7*(2*p-14))/7+(-6*p)/7+(6*7)/7 > 0
3/7*7*(2*p-14)-6*p+6*7 > 0
42-42 > 0
0 > 0
0/7 > 0
0/7 > 0 // * 7^2
0*7 > 0
( 0 )
0 > 0
p belongs to the empty set
( 7 )
7 > 0
p należy do R
(-oo:+oo) 0 7 +
p belongs to the empty set
0
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