Question

Tìm m :

                  8,75   x  m  + 1,25  x  m  =  20

Answer 1

8,75 x m + 1,25 x m = 20

m x (8,75+1,25)=20

m x 10=20

m=2

Answer 2

Ta có: \(8.75\cdot m+1.25\cdot m=20\)

\(\Leftrightarrow m\cdot10=20\)

hay m=2

Answer 3

8,75 x m + 1,25 x m = 20

⇒m x (8,75+1,25)=20

⇒m x 10=20

⇒m=20:10

⇒m=2