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(4m - 12 – 3m)7 < 140
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(4m - 12 – 3m)7 < 140

User Tanou
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1 Answer

5 votes

We have


\mleft(4m-12-3m\mright)7<140

we need to simplify the inequality


(m-12)7<140
7m-84<140
7m<140+84
7m<224

then we isolate m


m<(224)/(7)
m<32

User Statler
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