Question

Evaluate the following.
(i) (-12) -(-63)
(iii) 12-24 +7-9​

Answer 1

Answer:

-12+63=51

-12+(-2)= -12-2=-14

Answer 2

Answer:

$1) \: \: = ( - 12) - ( - 63) \\ \: \: \: \: \: \: \: = - 12 + 63 \\ \: \: \: \: \: \: \: = 51 \\ \\ 2) \: \: = (12 - 24) + (7 - 9) \\ \: \: \: \: \: \: \: = ( - 12) + ( - 2) \\ \: \: \: \: \: \: \: = - 12 - 2 \\ \: \: \: \: \: \: \: = - 14$

Step-by-step explanation:

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