5.(x+4)=14--12+3
x+4=29:5
x=5,8-4
x=1,8
tích dúng giuum nha thanks
15-5.(x+4)= -12-3
<=>15-5.(x+4)= -15
=>5.(x+4)= 15 - (-15)
=>5.(x+4)=30
=>x+4=30:5
=>x+4=6
=>x=6-4
=>x=2
15 - 5 . (x+4) = - 12- 3
=15-5.(x+4) = -15
=5. (x +4) = 15 - ( -15 )
= 5. (x +4) = 30
= x+4 = 30 : 5
= x +4 = 6
= x = 6-4
= x = 2
Vậy x = 2