SOLUTION: x+4x < 3(1+x)

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Question 118959:
x+4x < 3(1+x)
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X+4X<3(1+X)
5X<3+3X
5X-3X<3
2X<3
X<3/2
X<1.5 ANSWER.
PROOF:
LET X=1.4
1.4+4*1.4<3(1+1.4)
1.4+5.6<3*2.4
7<7.2