解:4×(1.25X+X)=3605X+4X=3609X=360X=40
4乘以(1.25x十x)=360怎么解方程?5x+4x=3609x=360x=40
用360除以4等于90,然后用90除以2.25等于40就行了。
4×(1.25x +x)=3604×2.25x =3602.25x=360÷42.25x=90x=90÷2.25x=40