X=15 nha
K mik nha
học tốt
^_^
x + 5 x 2 - ( 32 + 16 x 3 : 6 - 15 ) = 0
-> x + 10 - 25 = 0
-> x + ( - 15 ) = 0
-> x = 0 - ( - 15 )
-> x = 15
x + 5 . 2 - ( 32 + 16 . 3 : 6 - 15 ) = 0
x + 5 . 2 - ( 32 + 8 - 15 ) = 0
x + 5 . 2 - 25 = 0
x + 10 = 25
x = 25 - 10 = 15