Ta có:\(\frac{x+60,2}{x+51}=66\)
\(\Leftrightarrow x+60,2=66.\left(x+51\right)\)
\(\Leftrightarrow x+60,2=66x+3366\)
\(\Leftrightarrow x-66x=3366-60,2\)
\(\Leftrightarrow-65x=3305,8\)
\(\Leftrightarrow x=\frac{-16529}{325}\)
Học tốt
Ta có:\(\frac{x+60,2}{x+51}=66\)
\(\Leftrightarrow x+60,2=66.\left(x+51\right)\)
\(\Leftrightarrow x+60,2=66x+3366\)
\(\Leftrightarrow x-66x=3366-60,2\)
\(\Leftrightarrow-65x=3305,8\)
\(\Leftrightarrow x=\frac{-16529}{325}\)
Học tốt