Trả lời
\(8x=7,8x+25\)
\(\Rightarrow8x-7,8x=25\)
\(\Rightarrow0,2x=25\)
\(\Rightarrow x=25:0,2\)
\(\Rightarrow x=125\)
Vậy x=125
8x = 7,8x + 25
8x - 7,8x = 25
0,2x = 25
x = 125
Tk mk nha!
\(7,8x+25=8x\)
\(\frac{39}{5}x+25=8x\)
\(\Rightarrow8x-\frac{39}{5}x=25\)
\(\Rightarrow\frac{1}{5}x=25\)
\(\Rightarrow x=25\div\frac{1}{5}\)
\(\Rightarrow x=125\)
\(8x=7,8x+25\)
\(\Rightarrow7,8x-8x=-25\)
\(\Rightarrow-0,2x=-25\)
\(\Rightarrow x=-25:\left(-0,2\right)=125\)
