Add. $a - 2 b + 3 c, 3 b - 5 c, 2 a + c$

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Solution

Find addition of $a - 2 b + 3 c, 3 b - 5 c, 2 a + c$
Add all the algebraic expressions by putting plus sign,
$a - 2 b + 3 c + 3 b - 5 c + 2 a + c = a + 2 a - 2 b + 3 b + 3 c - 5 c + c = 3 a + b - c ∴ a - 2 b + 3 c + 3 b - 5 c + 2 a + c = 3 a + b - c$

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Question 81 (vii)

Add :

$3 a (2 b + 5 c), 3 c (2 a + 2 b)$

- 2 a + 3 b + 5 c, a + 2 b + 3 c, 7 a - c

a (2 a + b - c) - b (a - 2 b + 2 c)

3 c (- 2 a + 3 b + c)

Add the terms: $2 a, 3 b, - 5 c$

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