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সমাধান সেট নির্ণয় কর: $\frac{2t-6}{9}+\frac{15-2t}{12-5t}=\frac{4t-15}{18}$

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$\frac{2t-6}{9}+\frac{15-2t}{12-5t}=\frac{4t-15}{18}$

বা, $\frac{2t-6}{9}-\frac{4t-15}{18}=-\frac{15-2t}{12-5t}$

বা, $\frac{2\left(2t-6\right)-\left(4t-15\right)}{18}=\frac{2t-15}{12-5t}$

বা, $\frac{4t-12-4t+15}{18}=\frac{2t-15}{12-5t}$

বা, $\frac{3}{18}=\frac{2t-15}{12-5t}$

বা, $\frac16=\frac{2t-15}{12-5t}$

বা, $6(2t-15)=1(12-5t)$

বা, $12t-90=12-5t$

বা, $12t+5t=12+90$

বা, $17t=102$

বা, $t=\frac{102}{17}$

$\therefore t=6$

সুতরাং নির্ণেয় সমাধান সেট $S=\{6\}$ [Answer]

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