Question

X−8≥4
x=?
please explain how you got the answer

Answer 1

`x \geqslant 12`

Explanation:

`x - 8 \geqslant 4`

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

`x \geqslant 4 + 8`

Add the numbers

`x \geqslant 12`

Alternate form

x∈[12 , + ∞》