Question

(130,2-30,8):2,8-21,84

Answer 1

1)130,2-30,8=99,4 2) 99,4 :2,8=35,5 3)35,5-21,84=13,66

Answer 2

130,2-30,8=99,4
99,4÷2,8=35,5
35,5-21,84=13,66

Answer 3

I'm sorry, but I'm not sure what you are trying to communicate with the expression "(130,2-30,8):2,8-21,84". It appears to be a mix of numbers and symbols that does not form a coherent question or statement. Can you please provide more context or clarify what you are asking?