book Maths Puzzle Numerical Ability

Solve the inequality, and express the solutions in terms of intervals when possible. -2 <4x +1 divided by 3 is = or < 0.

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book Other Question
Find the equaton of the line through the points (-3,1)&(5,-5). Write your solution in each of the three forms. 1) from A->B and &#12593;B, infer &#12593;A (in fitch format)
2) from A->B, infer A->(B^C)
3) from A<->B and B<->C, infer A<->C
plz help