SOLUTION: 3r+1<4r+7
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Question 105362: 3r+1<4r+7
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
3R+1<4R+7
3R-4R<7-1
-R<6 DIVIDE BOTH SIDES BY -1 WHICH CHANGES THE < TO A >.
R>-6
PROOF
LET R=-5
3*-5+1<4*-5+7
-15+1<-20+7
-14<-13
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