Question

(Xx68+X)+3X=396

tìm X

Answer 1

= X x ( 68 + 1) +3X

= 69X + 3X

=( 69 + 3 )X

= 72X

Answer 2

(X x 68 + X) + 3X = 396

=> X x 69 + 3X = 396

=> 72X = 396

=> 5.5

Answer 3

(X x 68 + X) + 3X = 396

=> X x 69 + 3X = 396

=> 72X = 396

=> 5.5