SOLUTION: x - 9 < 3x - 4 < x + 8

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Question 352127: x - 9 < 3x - 4 < x + 8
Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
x+-+9+%3C+3x+-+4+%3C+x+%2B+8 subtrac x from each group
x-x+-+9+%3C+3x-x+-+4+%3C+x-x+%2B+8
-+9+%3C+2x+-+4+%3C+8 add 4 to each group
-+9%2B4+%3C+2x+-+4%2B4+%3C+8%2B4
-+5+%3C+2x+%3C+12 now divide each group by 2
%28-+5%2F2%29+%3C+x+%3C+6
draw an open circle at x=-2.5 and draw and arrow to the right
then draw an open circle at x=6 and draw an arrow to the left
where the two lines overlap is where the solution lines (between -2.5 and 6, not including those points)