\(0,2:\frac{6}{5}=\frac{2}{3}:\left(6x+7\right)\)
=> \(\frac{0,2.5}{6}=\frac{2}{3\left(6x+7\right)}\)
=> \(\frac{1}{6}=\frac{2}{18x+21}\)
=> 18x + 21 = 12
=> 18x = -9
=> x = -0.5
Vậy x = -0,5
\(0,2:\frac{6}{5}=\frac{2}{3}:\left(6x+7\right)\)
\(\Rightarrow0,2.\frac{5}{6}=\frac{2}{3}.\frac{1}{6x+7}\)
\(\Rightarrow\frac{1}{6}=\frac{2}{3}.\frac{1}{\left(6x+7\right)}\)
\(\Rightarrow\frac{1}{4}=\frac{1}{\left(6x+7\right)}\)
\(\Rightarrow4=6x+7\)
\(\Rightarrow x=-\frac{1}{2}\)
0,2 : 6/5 = 2/3 : (6x + 7)
6/25 = 2/3 : (6x + 7)
2/3 : 6/25 = 6x + 7
25/9 = 6x + 7
25/9 - 7 = 6x
-35/9 = 6x
x = -35/9 : 6
x = -7/18
\(0,2:\frac{6}{5}=\frac{2}{3}:\left(6x+7\right)\)
\(\frac{1}{6}=\frac{2}{3}:\left(6x+7\right)\)
\(\frac{2}{3}:\left(6x+7\right)=\frac{1}{6}\)
\(\left(6x+7\right)=\frac{2}{3}:\frac{1}{6}\)
(6x+7)=4
6x=4-7
6x=-3
x=-3:6
x=-0,5
vậy x=-0,5
