Question

Simplify the following:
40 + [20 - {28 = 7 - 3+ (30 - 5 of 4)}]​

Answer 1

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Answer 2

Answer: 49

Step-by-step explanation:

40+[20-{28/7-3+(30-5*4)}]

40+[20-{28/7-3+(30-20)}]

40+[20-{28/7-3+10}]

40+[20-{4-3+10}]

40+[20-{14-3}]

40+[20-11]

40+9

49