Math
posted by Kevin .
Solve and graph the solution set on a number line.
5x + 7  2 < 4
<>
5 4 3 2 1 0 1 2 3 4

Math 
Reiny
5x + 7  2 < 4
5x + 7 < 6
5x+7 < 6 AND 5x  7 < 6
5x < 1 AND 5x < 13
x < 1/5 AND x > 13/5
13/5 < x < 1/5
draw "open" dots at 13/5 and 1/5 and join with a solid line
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