6x*2-7x+1<span>≥0</span>
<span>4x-3<span>≥0</span></span>
<span><span>
</span></span>
5x<span>≥-1</span>
<span>4x<span>≥3</span></span>
<span><span>
</span></span>
<span><span>x<span>≥-0.2</span></span></span>
<span><span><span>x<span>≥0.75</span></span></span></span>
<span><span><span><span>
</span></span></span></span>
Ответ: [-0.2;0.75]