Question

[huy nguyễn]

Tìm x

a/

x+65,27=72,6

b/

x-43,502=21,73

c/

x.6,3=187

d/

1602:x=7,2

Answer 1

[Nguyễn Ngọc Mai]

a/ x+65,27=72,6

    x=72,6-65,27

     x=7,33

b/x-43,502=21,73

            x=21,73+43,502

              x=65,232

c/x.6,3=187

           x=187:6,3

           x=29,682....

d/ 1602:x=7,2

           x=1602:7,2

           x=222,5

Answer 2

[GV Nguyễn Trần Thành Đạt]

\(X+65,27=72,6\\ X=72,6-65,27=7,33\\ ---\\ X-43,502=21,73\\ X=21,73+43,502=65,232\\ ---\\ X.6,3=187\\ X=\dfrac{187}{6,3}=\dfrac{1870}{63}\\ ---\\ 1602:X=7,2\\ X=1602:7,2=222,5\)