exam Maths Puzzle Numerical Ability

1/8 - 3/5 = 1/x Solve for x?

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exam Other Question

If y=square rootx-2, fill in the following table for x=0,1,2,3,4
x y
0
1
2
3
4
show all work

B) explain why no negative values are chosen as values to subsitute in f
HOW DO YOU GRAPH

2y-y=4
2y-y=6

and

x-2y=8
3x-2y=12