allegany math

|5s+2|=|s+8|

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  1. Start with this solution and check it.

    5s+2=s+8
    4s=6
    s=3/2

    checking it: abs(5*3/2+2)=abs(3/2+8)
    abs(7.5+2)=abs(9.5) checks ok

    Now check this solution:
    -5s-2=s+8
    4s=-10
    s=-5/2
    checking: abs(-25/2 +2)=abs(-5/2 +8)
    abs(-21/2)=abs(-11/2) does not check

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