$7-47.$ Draw the shear and moment diagrams for the beam

$($a$)$ in terms of the parameters shown; $($b$)$ set $P=600lb,$

$a=5ft,b=7ft.$

Prob. $7-477-47.$

a$.$ For

$M=3000-250xlb*fta,$

$M=Pa-\frac{Pa}{a+b}x,$

$b.$ For

$M=350xlb*ft,$

For $5ft,$

$M=3000-250xlb*ft0x,$

For $a,$

$M=Pa-\frac{Pa}{a+b}x,$

$b.$ For

$M=350xlb*ft,$

For $5ft,$

$M=3000-250xlb*ft$ here is the question and its answer please solve the solution