Question

25x[x-3,4]-5,67=7,23

Answer 1

\(25\cdot\left(x-3,4\right)-5,67=7,23\)

\(25\cdot\left(x-3,4\right)=7,23+5,67\)

\(25\cdot\left(x-3,4\right)=12,9\)

\(x-3,4=12,9\text{ : }25\)

\(x-3,4=0,516\)

\(x=0,516+3,4\)

\(x=3,916\)

Answer 2

cảm ưn bạn

Answer 3

25(x - 3,4) - 5,67 = 7,23

=> 25(x - 3,4) = 7,23 + 5,67

=> 25(x - 3,4) = 12,9

=> x - 3,4 = 12,9 : 25

=> x - 3,4 = 0,516

=> x = 0,516 + 3,4

=> x = 3,916

Vậy x = 3,916