Please answer this....
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Answer:
mark me the brainliest
Step-by-step explanation:
a) (-31)÷[(-30)+(-1)]
= (-31)÷[-30-1]
= (-31)÷[-31]
= -31÷-31
= 0
b) [(-48)÷12]÷(-2)
= [-48÷12]÷(-2)
= [-4]÷(-2)
= -4÷-2
= 2
c) [(-77)+5]÷[(-3)+6]
= [-77+5]÷[-3+6]
= [-72]÷[3]
= -72÷3
= -24
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