9. Simplify 20 + 7 – [18 – {19 – (8 – 4-1)}].
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Answered by
6
Answer:
= 20 + 7 – [18 – {19 – (8 – 4-1)}].
= 20 + 7 - [18 - {19 - (3)}]
= 20 + 7 - [18 - 16]
= 20 + 7 - 2
= 27 - 2
= 25
Answered by
1
Answer=
20+7-[18-{19-(8-4-1)}]
=20+7-[18-{19-3}]
=20+7-[18-16]
=20+7-2
=27-2
=25
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