Evaluate 9 ÷ 3[(20 − 7) − 22].
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-1/3
Step-by-step explanation:
9 ÷ 3[(20 − 7) − 22].
first Solving ()
(20 - 7) = ( 13) = 13
= 9 ÷ 3[13 − 22].
now solving [13 − 22].
= [ - 9]
= 9 ÷ 3[-9].
= 9 ÷ [-27].
= - 9/27
= -1/3
9 ÷ 3[(20 − 7) − 22]. = -1/3
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