exam Maths Puzzle Numerical Ability

I do not understand how to do this problem. It is 2x+3=8. I can not find the steps any were to figure out this problem. Can you show me the steps please?

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exam Other Question

Hello - I am having a hard time with the following problem and could really use some help:

-5/6x - (x-1/2) = 1/4(x+1)

here's what I have so far:
-5/6x - x + 1/2 = 1/4x + 1/4 what are two consecutive even integers that has a product 55 more than their sum?