exam Maths Puzzle Numerical Ability

solve:

(square root of Y+9)=1

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exam Other Question

Could you help solve:

8/x-5/y=51/14 6/x+(-10)/y=-(29/7)
Solve the following equations:
(The square root of x)- 1 = 3
(The square root of x^3) = 8
Show all of your work in this space.