Respuesta :

Answer:

The operation should be substracting 11 from both sides of the equation.

x=4

Step-by-step explanation:

We have the equation

[tex]x+11=15[/tex]

We have to apply an operation to isolate x.

The operation should be substracting 11 from both sides of the equation:

[tex]x+11+(-11)=15+(-11)\\\\x+(11-11)=15-11\\\\x+0=4\\\\x=4[/tex]