State True or False:
Addition of $3 b - 7 c + 10, 5 c - 2 b - 15, 15 + 12 c + b$ is $2 b + 10 c + 10$ .

True

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False

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Solution

The correct option is A True
$W e c a n d i r e c t l y a d d t h e c o e f f i c i e n t s o f l i k e v a r i a b l e s, ⟹ (3 - 2 + 1) b + (- 7 + 5 + 12) c + (10 - 15 + 15) = 2 b + 10 c + 10$

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