exam Maths Puzzle Numerical Ability

solve and graph the following:
<
7-n-19
1/2x-4>-6
-n+6<7n+4
<
-16-3x-4<7
-
-2<-2n=1<7
3x+2<-10 or 2x-4>-4

< this means the greater then or or equal to si

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