\(0,3\)x\(\left(x+\frac{3}{3}\right)=4:\frac{2}{3}\)
\(\Leftrightarrow0,3\)x\(\left(x+1\right)=6\)
\(\Leftrightarrow x+1=\frac{6}{0,3}\)
\(\Leftrightarrow x+1=20\)
\(\Leftrightarrow x=19\)
0,3 x ( X + 3/3 ) = 4 : 2/3 = 0,3 x ( X + 1 ) =6
x + 1 = 6 : 0,3
x + 1 = 20
x = 19