x:4+x=3,75
x/4+x=3,75
x(1/4+1)=3,75
x (5/4)=15/4
x=15/4x4/5
x=3
x: 4 + x = 3.75
x : 4 = 3.75 - x
x = 4(3.75 - x)
x = 15 - 4x
x + 4x = 15
5x = 15
=> x = 15 : 5
x = 3
Xong rùi nha bạn
Ta có: X:4 + X:1 = 3,75
X:(4+1) = 3,75
X:5= 3,75
X=3,75 x 5
X=18,75
x:4+x=3.75
x:4+x:1=3.75
x:(4+1)=3.75
x:5=3.75
x=3.75*5
x=18.75
x : 4 + x = 3,75
=>x : 4 + x :1 = 3,75
=>x : (4 + 1 )=3,75
=>x : 5 = 3,75
=>x = 3,75 * 5
=>x = 18,75
x:4+x=3.75
x.1/4+x=3.75
x/4+x=3.75
x.(1/4+1)=375/100
x.5/4=375/100
x=375/100:5/4=3
Vậy x=3