5 x X + X : 0,25 + X : 0,125 = 170
<=> 5 x X + X x 4 + X x 8 = 170
=> X x (5 + 4 + 8) = 170
=> X x 17 = 170
=> X = 170 : 17
=> X = 10
\(5x+x:0,25+x:0,125=170\)
\(5x+x.4+x.8=170\)
\(x\left(5+4+8\right)=170\)
\(17x=170\)
\(\Rightarrow x=10\)
5 . x + x : 0,25 + x : 0,125 = 170
5 . x + x . 4 + x . 8 = 170
x . ( 5 + 4 + 8) = 170
x . 17 = 170
x = 170 : 17
x = 10
Vậy x = 10
Ủng hộ mk nha!!!