-5 đó
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
=>-2x=10
=>x=-5
Ai tích mk mk sẽ tích lại
8 + 3x - 5 = 13 + 5x
=> 3 + 3x = 13 + 5x
=> 3 = 13 + 5x - 3x
=> 3 = 13 + 2x
=> 2x = 3 - 13 = -10
x = -10 : 2
x = -5
8+3x-5=13+5x
3x-5x =13-8+5
-2x =5+5
-2x=10
x =10:2
x =5
Vậy x=5
nhầm nha
kq đúng là x=-5
xin lỗi bn nha
chúc bn học gioi
ahjhj