Question

3(1-х) +2(2-2x)< или = 0 решите неравенство

Answer 1

$3(1-x)+2(2-2x)leq 0\ 3-3x+4-4xleq 0\ 7-7xleq 0 bigg | :7\ 1-xleq 0\ xgeq 1\ Answer: x in [1; +infty)$