Question

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

Answer 1

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