Answer :

55 > -7v +6
55-6 > -7v+6-6
49 > -7v
49/(-7) < (-7v)/(-7)
-7 < v
[tex]55>-7v+6\\\\55+7v-55<-7v+6+7v-55\\\\7v>-49\ \ /:7\\\\v>-7\ \ \ \Rightarrow\ \ \ v\ \in\ (-7;\ +\infty)[/tex]

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