Question

[Kim Taehyung]

Bài 1 : Tìm x?

a,x*2,8+x*5,2=48

b,x*12,6-x*5,6=42

c,x*12,25-x+x*2,75=1050

8

Answer 1

[le sourire]

a) x×2,8+x×5,2=48 x×(2,8+5,2)=48 x×8 =48 x =48:8 x =6 b) x×12,6-x×5,6=42 x×(12,6-5,6)=42 x×7 =42:7 x =6