verify using transposition method: $3 (n - 4) = 30$

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Solution

$\begin{matrix} 3 (n - 4) = 30...... (1) 3 n - 12 = 30 T r a n s p o s e 12 t o R H S 3 n = 30 + 12 3 n = 42 T r a n s p o s e 3 t o R H S n = \frac{42}{3} = 14 v e r i f y p u t, n = 12 i n e q (1) 3 (n - 4) = 30 3 (14 - 4) = 30 3 (10) = 30 30 = 30 ∴ L H S = R H S h e n c e v e r i f i e d \end{matrix}$

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