Question

Tìm x thỏa mãn :

3600 : [( 5x + 335 ) : x ] = 50

Answer 1

3600 : [( 5x + 335 ) : x ] = 50

[(5x+335):x]=3600:50

(5x+335):x=72

5x+335=72x

5x-72x=-335

-67x=-335

x=5

Answer 2

3600 : [( 5x + 335 ) : x ] = 50

[(5x+335):x]=3600:50

(5x+335):x=72

5x+335=72x

5x-72x=-335

-67x=-335

x=5