Question

Simplify: −7 + {12 − 3[50 − 4(2 + 3) ] }

Answer 1

-85

Explanation:

1) (2 + 3)

-7 + {12 - 3[50 - 4(5) ] }

2) -7 + {12 - 3[50 - 20] }

-7 + {12 - 3[30] }

3) -7 + 12 - 90

5 - 90

Answer: -85