6,42x X+3,58x X=5
X x( 6,42+3,58)=5
X x10=5
X=5:10=0,5
T..i..c..k mk nha
6,42 x X + 3,58 x X = 5
X = 5 : (6,42 + 3,58)
X = 0,5
đề ra\(=\left(6,42+3,58\right)\times X=5\)
\(\Rightarrow10\times X=5\)
\(\Rightarrow X=0,5\)
(6,42+3,58) x X= 5
10 x X =5
=> X= 5/10=1/2=0,5
6.42 × x + 3.58 × x = 5
( 6.42 + 3.58 ) × x = 5
10 × x = 5
x = 5 ÷ 10
x = 0.5
Chúc bạn học giỏi
^^