exam Maths Puzzle Numerical Ability

Hello out there,I need help with two tough problems,the first one is,Solve:3y/2=7+y/4.And the last one is,Find the quotient:e^2-e-12/e-4,thanks to whoever can help.

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exam Other Question

Can you help with this word problem:

Hint-this is a piecewise-defined function

A newspaper company bough a new pringtin press for $50,000, whic will depreciate linearly for 1 ((x-a)/(b+c))+((x-b)/(c+a))+((x-c)/(a+b))=3