Question $4(6$ points$)$

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A simply supported beam of length $33$ m has a point load of $5$ kN applied at a distance of $18$ m from the right support. Calculate the reaction force at the supports.

To answer the question, just type out or provide the following information:

$P=?$

$a=?$

$b=?$

$R1=?$

$R2=?$