\(432-x.9=400\)
\(x.9=432-400\)
\(x.9=32\)
\(x=32:9 \)
\(x= \frac{32}{9}\)
432-Xx9=400
Xx9=432-400
Xx9=32
X=32:9
X=..............
hình như sai đầu bài
\(\Rightarrow\)x*9=432-400
\(\Rightarrow\)x=32/9
\(\Rightarrow\)x=\(\frac{32}{9}\)
Vậy x=\(\frac{32}{9}\)
432 - X x 9 = 400
=> X x 9 = 432 - 400
=> X x 9 = 32
=> X = 32 : 9
=> X = \(\frac{32}{9}\)
Vậy X = \(\frac{32}{9}\)