exam Maths Puzzle Numerical Ability

I would love someone to help me answer this question.
I need to write a equivalent expression to the following without parenthesis.
-(z+92) Would someone please explain to me how to do this. Thank you so much for any help given.

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exam Other Question

Please help me solve this equation:
Solve using the addition and multiplication
6-6x<4-5x
In triangle RST, U lies on TS with TU:US = 2:3. M is the midpoint of RU. TM intersects RS in V. Find the ratio RV:RS.