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    Solve the inequality -2s + 8 < 20

    0  Views: 179 Answers: 2 Posted: 12 years ago

    2 Answers

    2s + 8  < 20
    2s + 8 - 8 < 20 - 8  (Getting the unknown all by itself on one side of the < sign;  What you do on one side of the equation you must do on the other side to keep it "in balance"; subtract 8 on both sides)


    2s < 12

    2s/s < 12/2  (Dividing the 2s by 2 will give you 's' all by itself; again, what you do on one side you must do on the other...divide by 2)


    s< 6
    That's all for tonight.  You do some and post them.  I'll make sure they are OK. 
    I'm assuming we are doing your homework, but maybe I'm wrong.

    [Tips -Use the equal axiom to get the result]


    Let us see the solution for this inequality


    -2s + 8 < 20


    i.e. 8-20 < 2s


    i.e. -12 < 2s


    i.e. -12/2 < s


    So, -6 < s


    Now solve the other related problems by yourself.


     


     



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