Simplify:
(1) $2 + (- 4) - (+ 3)$
(2) $- 5 + 4 - (- 2)$
(3) $10 + (- 5) - (- 4)$
(4) $12 - (+ 6) + (- 3)$
(5) $- 15 + (- 4) - (+ 3)$

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Solution

Points to remember while solving these type of questions:-
(a) $(+) \times (-) = (-)$
(b) $(-) \times (-) = (+)$
(c) $(+) \times (+) = (+)$
(1) $2 + (- 4) - (+ 3)$
$= 2 - 4 - 3$
$= - 2 - 3$
$= - 5$
(2) $- 5 + 4 - (- 2)$
$= - 1 + 2$
$= 1$
(3) $10 + (- 5) - (- 4)$
$= 10 - 5 + 4$
$= 5 + 4$
$= 9$
(4) $12 - (+ 6) + (- 3)$
$= 12 - 6 - 3$
$= 6 - 3$
$= 3$
(5) $- 15 + (- 4) - (+ 3)$
$= - 15 - 4 - 3$
$= - 19 - 3$
$= - 22$

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