Question

simplify 40+[20- {28 divide by 7-3+(30 - 5 of 4

Answer 1

40+[20-{28÷7-3+(30-2

40+[20-{28÷7-3+10

40+[20-{4-3+10

40+(20-(4+10-3

40+(20-11

40+9

49

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