exam Maths Puzzle Numerical Ability

graph the solution set of each of the following inequalities


x>4

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Tutor: Can you check this problem to see if I got it right?????Thank you!!!!
Simplify the problem
(1/2)^3+(1/3)-2-(1/4)-2

Answer
0.125+(1/3)(-2)-(1/4)(-2)
0.125+9-(1/4)(-2)
0.125+9-16
-6.875
solve using the substitution method.

y=2x+1,
x+y=-2