Write following bending moment and shear force equations for the left half of the beam shown below. Use capital letters $M$ and $P$ for moments and point loads; small $w$ for UDL; small $x$ and $L$ for distances. Note: An addition should be written as in $a+b,$ subtraction $a-b,$ division $\frac{a}{b},$ and multiplication just ab$.$

Write following bending moment and shear force equations for the left half of the beam shown below. Use capital letters $M$ and $P$ for moments and point loads; small $w$ for UDL; small $x$ and $L$ for distances. Note: An addition should be written as in $a+b,$ subtraction $a-b,$ division $\frac{a}{b},$ and multiplication just ab$.$

$M_x=$

$S_x=$