Question

 

 

[(250—25)÷15]÷x=(450—60)÷130

X÷[(1800±600)÷30]=560÷(315—35)

 

 

Answer 1

\(\left[\left(250-25\right):15\right]:x=\left(450-60\right):130\)

\(15:x=3\)

\(x=5\)

\(x:\left\{\left[1800+\left(-600\right)\right]:30\right\}=560:\left(315-35\right)\)

\(x:40=2\)

\(x=80\)

bấm máy cho nhanh bạn ah. 

Answer 2

[(250—25)÷15]÷x=(450—60)÷130

[(250-25):15]:x=3

[225:15]:x=3

15:x=3

x=15:3

=>x=5