8x =7,8x + 25
<=> 8x - 7,8x=25
<=> 0,2x=25
<=> x=25/0.2
<=> x=125
8x=7,8x+25
8x-7,8x=25
x (8-7,8)=25
x.0,2=25
x=25:0,2
x=125
8x=7,8.x+25
8x-7,8.x=25
x(8-7,8)=25
x.0,2=25
x=25:0.2
x=125
8x = 7,8 . x + 25
8x - 7,8 . x = 25
x . ( 8 - 7,8 ) = 25
x . 0,2 = 25
x = 125
8x = 7,8.x + 25
8x - 7,8.x = 25
x ( 8 - 7,8 ) = 25
x.0,2 = 25
x = 25 : 0,2
x = 125
\(8x=7,8x+25\)
\(\Leftrightarrow8x-7,8x=25\)
\(\Leftrightarrow x\times0,2=25\)
\(\Leftrightarrow x=125\)
Vậy \(x=125\)
8x=7,8x+25
7,8x+25=8x
8x-7,8x=25
x(8-7,8)=25
x.0,2=25
x=25:0,2
x=125
Vậy x=125
8x= 7,8.x + 25
8x - 7,8.x = 25
X ( 8 - 7,8 ) = 25
x.0.2 = 25
X = 25 ÷ 0,2
X = 125
HK TỐT !
8x = 7,8.x + 25
8x - 7,8.x = 25
x (8 - 7,8) = 25
x.0,2 = 25
x = 25 : 0,2
x = 125
\(8x=7,8+25\)
\(\Rightarrow8x-7,8x=25\)
\(x(8-7,8)=25\)
\(x.0,2=25\)
\(x=25:0,2\Rightarrow x=125\)
Vậy \(x=125\)
Các bạn nhé!
8 x = 7,8 x + 25
\(\Rightarrow\)8x - 7,8x = 25
\(\Rightarrow\)0,2x = 25
\(\Rightarrow\)x = 25 : 0,2
\(\Rightarrow\)x = 125
vậy x = 125
8x=7,8.x+25
8x-7,8x=25
x{8-7,8}=25
x.0,2=25
x=25:0,2
x=125
\(8x-7,8x=25\)
\(x(8-7,8)=25\)
\(x\times0.2=25\)
\(x=25:0,2\)
\(x=125\)
easy game,k me
8x=7,8.x+25
=> 8x-7,8x=25
=>(8-7,8).x=25
=>0,2.x=25
X=25:0,2
X=125
Chúc bạn học tốt!!!
8x = 7,8 . x + 25
8x - 7,8 . x = 25
x(8 - 7,8) = 25
x . 0,2 = 25
x = 25 : 0,2
x = 125
Vậy x = 125