Two marks exercise problems III — task. Mathematics State Board, Class 7.

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Find the sum of the following expressions.

(i)	$7p + 6q$ , $5p - q$ , $q + 16p$
(ii)	$a + 5b + 7c$ , $2a + 10b + 9c$
(iii)	$mn + t$ , $2mn - 2t$ , $-3t + 3mn$
(iv)	$u + v$ , $u - v$ , $2u + 5v$ , $2u - 5v$
(v)	$5xyz - 3xy$ , $3zxy - 5yx$

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