Question

Tìm x 

(x+28):13=25.2

Answer 1

(x+28):13=25.2

(x+28):13=50

(x+28)     = 650

x              = 622
vậy: x = 622

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Answer 2

\(\left(x+28\right):13=25\cdot2\)

\(\left(x+28\right):13=50\)

\(x+28=50\cdot13\)

\(x+28=650\)

\(x=650-28\)

\(x=622\)

Vậy \(x=622\)

Answer 3

( x+ 28): 13= 25. 2.

( x+ 28): 13= 50.

x+ 28= 50: 13.

x+ 28= \(\frac{50}{13}\).

x= \(\frac{50}{13}\)- 28.

x= \(\frac{-314}{13}\).

Vậy x= \(\frac{-314}{13}\).

Answer 4

( x+ 28): 13= 25. 2.

( x+ 28): 13= 50.

x+ 28= 50. 13.

x+ 28= 650.

x= 650- 28.

x= 622.

Vậy x= 622.