Question

1. Tìm x :

a, ( x + 3,75 ) x 2,7 = 17,55                      b, x : 2,3 - 12,4 = 0,94 

Answer 1

\(a,\left(x+3,75\right)\times2,7=17,55\)

\(x+3,75=17,55:2,7\)

\(x+3,75=6,5\)

\(x=6,5-3,75\)

\(x=2,75\)

Answer 2

\(b,x:2,3-12,4=0,94\)

\(x:2,3=0,94+12,4\)

\(x:2,3=13,34\)

\(x=13,34\times2,3\)

\(x=30,682\)

Answer 3

\(a.\left(x+3,75\right)\times2,7=17,55\)

\(\Rightarrow x+3,75=17,55:2,7\)

\(\Rightarrow x+3,75=6,5\)

\(\Rightarrow x=6,5-3,75\)

\(\Rightarrow x=2.75\)

Answer 4

:)))) Để chị thể hiện nhé !!!!

a) ( x + 3,75 ) x 2,7 = 17,55

     x + 3,75 = 17,55 : 2,7 

     x + 3,75 = 6,5

     x = 6,5 - 3,75

     x = 2,75

b) x : 2,3 - 12,4 = 0,94

    x : 2,3 = 0,94 + 12,4

    x : 2,3 = 13,34

    x  = 13,34 x 2,3 

    x  = 30,682

 

Answer 5

\(b.x:2,3-12,4=0,94\)

\(\Rightarrow x:2,3=0,94+12,4\)

\(\Rightarrow x:2,3=13,34\)

\(\Rightarrow x=13,34\times2,3\)

\(\Rightarrow x=30.682\)