Question

tìm x , biết:

a) 5 . ( x - 10 ) = 5

b) ( x-10) : 10 = 20

NHANH NHA

GHI CÁCH GIẢI

 

Answer 1

5 x (x - 10)=5 x-10 =5:5=1 x = 1 + 10= 11 (x - 10): 10=20 (x-10)=20x10=200 x = 200 + 10 = 210

Answer 2

\(a\)\(5.\left(x-10\right)=5\)

\(=x-10=5:5=1\Rightarrow x=10+1=11\)

\(b\)\(\left(x-10\right):10=20\)

\(=x-10=20.10=200\Rightarrow x=200+10=210\)

nhae