book Maths Puzzle Numerical Ability

Simplify (be sure to rationalize all denominators)

12. x^(3/4) + 5/[x^(1/4)] (you may assume x>0)

I came to the conclution of x+5/[x^(1/4)]. This wasn't right so I thought I

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book Other Question
3x-y=21
2x+y=4

Describe a first step for solving each system using elimination. then solve each system. Hi Tutors, it's me again I need help with the following problems can you help me. Thank you so much.

y=3x+2

x=5x

y=2x+1