exam Maths Puzzle Numerical Ability

How do I solve the equation and find the property I use at each step to simplify the equation
4x + 11 = (5x + 34)/2

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exam Other Question

A company has 3000 passengers daily paying a 25 cent fare. For each nickel increase in fare, the company projects it will lose 80 passengers. What fare increase will produce 994 in daily revenue? inverse of y=4(x-2)+9

I can do easy questions but not this please help and quickly ,thanking you in advance please do quickly as in for early tomorrow mourning many thanks