Question

Tìm x , 245 - 5(16 + x) = 140

Answer 1

=> 5(16 + x) = 245 - 140

=> 5(16 + x) = 105

=> 16 + x = 105 : 5

=> 16 + x = 21

=> x = 21 - 16

=> x = 5

Answer 2

245-5(16+x)=140

5(16+x)=245-140

5(16+x)=105

(16+x)=105:5

(16+x)=21

x=21-16

x=5