Question

Biết 165 - (35 : x + 3). 19 = 13. Giá trị của x là

Answer 1

165 - (35 : x + 3). 19 = 13

(35 : x + 3). 19 =165-13

(35 : x + 3). 19  =152

35:x+3= 152:19

35:x+3=8

35: x= 8-3

35:x= 5

x= 35:5

x= 7

Vậy..

Answer 2

\(165-\left(35:x+3\right).19=13\)

\(\Rightarrow\left(35:x+3\right).19=165-13\)

\(\Rightarrow\left(35:x+3\right).19=152\)

\(\Rightarrow\left(35:x+3\right)=152:19\)

\(\Rightarrow\left(35:x+3\right)=8\)

\(\Rightarrow35:x=8-3\)

\(\Rightarrow35:x=5\)

\(\Rightarrow x=35:5\)

\(\Rightarrow x=7\)

Vậy x = 7