exam Maths Puzzle Numerical Ability

pLEASE HELP me solve this problem. subtract and simplify:3x/x^2-36-2/5x+30

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exam Other Question

I give it a shot 3sqrtx-5=3 how would I figure this out and how would I submit this into the solver. Please advise

Thank you.
I am having trouble finding the intersection of Y=3/2X+4 and Y=-6+2x
Thanks Julian