9. Simplify:
(i) (-7) + (-9) + 12 + (-16)
(iii) (-145) + 79 +(-265) + (-41) +2
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Explanation:
(1) (-7) + (-9) + 12 + (-16)
= -7 -9 -16 +12
= -32 +12
= -20 [ans]
(2). (-145) + 79 + (-265)+ (-41) +2
= -145 -265 -41 +79 +2
= - 451 + 81
= -370 [ans]
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