Question

20-[10-3×{(18-7×4-30)}]​

Answer 1

Step-by-step explanation:

20-[10-3×{(18-7×4-30)}]

= 20-[10-3×{(18-28-30)}]

= 20-[10-3×{(-10-30)}]

= 20-[10-3×-40]

=20-[10- -120]

= 20-[10+120]

= 20 - 130

= -110

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