Ответ(ы) на вопрос:
Гость1) [latex]3-2(u-1)\ \textgreater \ 8+u[/latex]
[latex]3-2u+2\ \textgreater \ 8+u[/latex]
[latex]5-2u\ \textgreater \ 8+u[/latex]
[latex]-2u-u\ \textgreater \ 8-5[/latex]
[latex]-3u\ \textgreater \ 3[/latex]
[latex]u\ \textless \ -1[/latex]
2) [latex]5(u+2)+14\ \textless \ 6-u[/latex]
[latex]5u+10+14\ \textless \ 6-u[/latex]
[latex]5u+24\ \textless \ 6-u[/latex]
[latex]5u+u\ \textless \ 6-24[/latex]
[latex]6u\ \textless \ -18[/latex]
[latex]u\ \textless \ -3[/latex]
3) [latex]\frac{1}{4}(3+8u)\geq6.25+u[/latex]
[latex]4*\frac{1}{4}(3+8u)\geq4*6.25+4u[/latex]
[latex]3+8u\geq25+4u[/latex]
[latex]8u-4u\geq25-3[/latex]
[latex]4u\geq22[/latex]
[latex]u\geq5.5[/latex]
4) [latex]4(u+3)\ \textless \ 3(u+2)[/latex]
[latex]4u+12\ \textless \ 3u+6[/latex]
[latex]4u-3u\ \textless \ 6-12[/latex]
[latex]u\ \textless \ -6[/latex]
5) [latex]3(2u+1)\ \textgreater \ 5(u-1)[/latex]
[latex]6u+3\ \textgreater \ 5u-5[/latex]
[latex]6u-5u\ \textgreater \ -5-3[/latex]
[latex]u\ \textgreater \ -8[/latex]
6) [latex] \frac{3}{5}(5u-\frac{2}{3})\ \textless \ u+7.6[/latex]
[latex]3u-\frac{2}{5}\ \textless \ u+7.6[/latex]
[latex]3u-0.4\ \textless \ u+7.6[/latex]
[latex]3u-u\ \textless \ 7.6+0.4[/latex]
[latex]2u\ \textless \ 8[/latex]
[latex]u\ \textless \ 4[/latex]
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