Question

Tìm 𝒙 biết:

27 + 10 . (𝒙 - 2) = 43 - (-2) . 7

Answer 1

=>10(x-2)=43-(-14)-27=43+14-27=30

=>x-2=3

hay x=5

Answer 2

x = 5

Answer 3

\(27+10\left(x-2\right)=43-\left(-2\right).7\\ \Rightarrow27+10\left(x-2\right)=43-\left(-14\right)\\ \Rightarrow27+10\left(x-2\right)=57\\ \Rightarrow10\left(x-2\right)=30\\ \Rightarrow x-2=3\\ \Rightarrow x=5\)

Answer 4

27 + 10 . ( x - 2 ) = 43 - ( -2 ) . 7

27 +10 . ( x - 2 ) = 43 - ( -14 ) 

27 + 10 . ( x - 2 ) = 57

10. ( x - 2 ) = 57 - 27 

10. ( x - 2 ) = 30 

x - 2 = 30 : 10 

x - 2 = 3 

x = 3 + 2 

x = 5 

vậy x = 5