Respuesta :

Answer:

[tex]x \geqslant 12[/tex]

Step-by-step explanation:

[tex]x - 8 \geqslant 4[/tex]

Move the constant to the right-hand side and change its sign

[tex]x \geqslant 4 + 8[/tex]

Add the numbers

[tex]x \geqslant 12[/tex]

Alternate form

x∈[12 , +  ∞》