Question

x nhân 3,14 +x nhân 5,86-x=2012

Answer 1

x.3,14+x.5,86-x=2012
x.(3,14+5,86)-x=2012
x.9-x=2012
x.(9-1)=2012
x.8=2012
x=2012:8
x=251,5

Answer 2

ai co the giup minh bai nay khi chia so tu nhien cho 25 ta duoc so du la 12 hoi neu viet thuong dung duoi dang so thap phan thi phan thap phan cua chung la bao nhieu