book Maths Puzzle Numerical Ability

Graph -1/2x + y > -2

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book Other Question

what is 10y-13=3y+8 need to solve and graph
|2 - x/4 | - 3 >= 1

I came up with
x >= -2

dont know if this is correct...as I multiplied each side by 4 to get rid of the fraction...then solved fo