e)2x+5=x-1
2x-x =-1-5
x =-6
Vậy x=-6
f)-3x=-5+29
-3x=24
x=-8
Vậy x=-8
g)|x|-9=-2+17
x =-2+17+9
x =24
Vậy x=24
h)|x-4|=|-81|
x-4=81
x =85
Vậy x=85
i)|x-5|=(-4)^2
x-5=16
x =21
Vậy x=21
k)|x-9|=-2+17
x-9=15
x =24
Vậy x=24
~~~Learn Well Ichigo~~~
e) Ta có: 2x+5=x-1
\(\Leftrightarrow2x-x=-1-5\)
hay x=-6
Vậy: x=-6