Answers

  • Brainly User
2016-06-09T22:01:32+08:00
Follow the PEMDAS rule:

7 + [(10 x 100) ÷ 45] - 90 

= 7 + [1000 ÷ 45] - 90

= 7 + [200/9] - 90

LCD: 9

= 63/9 + 200/9 - 810/9

=  (63 + 200 - 810) / 9

= -547/9


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