SOLUTION: 2 times a number, increased by 28, is less than or equal to 6 times that number

SOLUTION: 2 times a number, increased by 28, is less than or equal to 6 times that number

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Question 114870:

2 times a number, increased by 28, is less than or equal to 6 times that number
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
2X+28<=6X
2X-6X<=-28
-4X<=-28 WHEN DIVIDED BY A NEGATIVE NUMVER THE < SIGN CHANGES TO A > SIGN.
X>=-28/-4
X>=7 ANSWER.
PROOF LET X=7.1
2*7.1+28<=6*7.1
14.2+28<=42.6
42.2<=42.6

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