Question

inecuatia f:R->R,f(x)= -3x+5 mai mare sau egala 2 afla valoarea reală a lui X​

Answer 1

$f:R \to R, \ f(x)=-3x+5 \geqslant 2 \\ -3x \geqslant 2-5 \\ -3x \geqslant -3 \\ \Rightarrow x \leqslant 1 \\ \Rightarrow \boxed{\bold{x \in (-\infty, 1]}}$