x. ( 3,65+6,35)= 30
x. 10= 30
x= 30:10
x= 3
Vậy....
\(6,35\times x+x\times3,65=30\)
\(\Leftrightarrow x\left(6,35+3,65\right)=30\)
\(\Leftrightarrow x\times10=30\)
\(\Leftrightarrow x=3\)
\(\text{6,35 * x + x * 3,65 = 30}\)
\(\text{x * ( 6,35 + 3,65) = 30}\)
\(\text{ x *10 = 30}\)
\(\text{ x = 30 : 10}\)
\(x=3\)
\(6,35\times x+x\times3,65=30\)
\(x\times\left(6,35+3,65\right)=30\)
\(x\times10=30\)
\(x=30\div10\)
\(x=3\)
6,35.x+x.3,65=30
x.(6,35+3,65)=30
x.10=30
x=30:10
x=3
Vậy