Question

решите неравенство 4-x>=3x+2

Answer 1

-x-3x≥2-4
-4x≥-2
x≤$frac{1}{2}$

Answer 2

x<=1/2 т.к 4-x>=3x+2,3x+2+x-4<=0,2(2x-1)<=0,x<=1/2