=>5x=55,35

=>x=55,35:5=11.07

x4 + x = 55 , 35

x4 + x1 = 55 , 35

x x ( 1 + 4 ) = 55 , 35

x x 5 = 55 , 35

x = 55 , 35 : 5

x = 11 , 07

x4 + x = 55,35

x5 = 55,35

x = 55,35 :5

x = 11,07

minh dang can gap nhe

x4 + x = 55,35

=> x.4 + x.1 = 55,35

=> x.(4+1) = 55,35

=> x.5 = 55,35

=> x = 55,35 : 5

=> x = 11,07

x4 + x = 55,35

=> 4x + x = 55,35

=> 5x       = 55,35

=> x         = 55,35 : 5 

=> x         = 11,07

X=12,3

ta co X x 4 +X = 55,35

X x 5 = 55,35f

X=55,35 chia 5

ban tu tinh nha

X x 4 + X = 55,35

4X+X=55,35

5X=55,35

X=11,07

X x 4 + X = 55, 35

4X + X = 55, 35

5X = 55, 35

X = 55, 35 : 5

X = 11, 07

\(x\times4\times x=55,35\)

\(x\times x=55,35:4\)

\(x\times x=13,8375\)

\(\Rightarrow x=3,719879....\)

x * 4 + 0 , 5 * x = 55 , 35

x * ( 4 + 0 , 5 )  = 55 , 35 

x * 4, 5             = 55 , 35 

      x                = 55 , 35 : 4 , 5 

      x                = 12 , 3 

Vậy x                = 12 , 3 

\(4x+\frac{1}{2}x=55,35.\)

\(\Leftrightarrow\left(4+\frac{1}{2}\right)x=55,35.\)

\(\Leftrightarrow4,5x=55,35\)

\(\Leftrightarrow x=12,3\)

hộ mình với mình đang cần gấp

\(x\cdot4+\frac{1}{2}\cdot x=55,35\)

\(x\cdot\left(4+\frac{1}{2}\right)=55,35\)

\(x\cdot\frac{9}{2}=55,35\)

\(x=12,3\)