x - 199 = 3 . 300 : 5
=> x - 199 = 180
=> x = 180 + 199
=> x = 379
x−199=3x300:5
\(\Rightarrow x=900:5+199\)
\(\Rightarrow x=450+199\)
\(\Rightarrow x=649\)
Hok tốt!
_Lan Lan_
\(x-199=3x300:5\)
\(\Leftrightarrow x-199=180x\)
\(\Leftrightarrow x-180x=199\)
\(\Leftrightarrow-179x=199\)
\(\Leftrightarrow x=\frac{-199}{179}\)
x−199=3x300:5
\(\Rightarrow x=900:5+199\)
\(\Rightarrow x=180+199\)
\(\Rightarrow x=379\)
Vừa nãy mk nhầm
Sorry nha!
\(x-199=3\times300\div5\)
\(x-199=180\)
\(x=180+199\)
\(x=379\)
\(#ttv\)
\(x-199=3\times300:5\)
\(\Rightarrow x-199=180\)
\(\Rightarrow x=180+199\)
\(\Rightarrow x=379\)
~ Hok tốt ~