3t-5 \atop {6t-2t>2t+8} \right. " alt="\left \{t+9>3t-5 \atop {6t-2t>2t+8} \right. " align="absmiddle" class="latex-formula">
1)6t-4>2t+8
6t-2t>8+4
4t>12 | :4
t>3
2) t+9>3t-5
t-3t>-5-9
-2t>-14 |:(-1)
2t<14 | :2</p>
t<7</p>
3} \atop {t_{2<7}} \right." alt="\left \{ {{t_{1>3} \atop {t_{2<7}} \right." align="absmiddle" class="latex-formula">