\(x:0,1+x:0,5-x:25\%+x+x=2019\)
\(\Rightarrow10x+2x-x:0,25+2x=2019\)
\(\Rightarrow12x-4x+2x=2019\)
\(\Rightarrow10x=2019\)
\(\Rightarrow x=201,9\)
x : 0,1 + x : 0,5 - x : 25 % + x + x = 2019 (dấu chấm lầ dấu nhân)
x . 10 + x . 2 - x : 0,25 + x + x = 2019
x . 10 + x . 2 - x . 4 + x + x = 2019
x . ( 10 + 2 - 4 + 1 + 1 ) = 2019
x . 10 = 2019
x = 2019 : 10
x = 201,9
Vậy x = 201,9
Trả lời
\(x\div0,1+x\div0,5-x\div25+x+x=2019\)
\(x\times10+x\times2-x\div0,25+x+x=2019\)
\(x\times10+x\times2-x\times4+x+x=2019\)
\(x\times\left(10+2-4+1+1\right)=2019\)
\(x\times10=2019\)
\(x=201,9\)
Vậy \(x=201,9\)
Đổi \(25\%=\frac{1}{4}\); \(0,5=\frac{1}{2}\)và \(0,1=\frac{1}{10}\)
Ta có : \(x:\frac{1}{10}+x:0,5-x:\frac{1}{4}+x+x=2019\)
\(\Leftrightarrow x.10+x.2-x.4+x+x=2019\)
\(\Leftrightarrow10x=2019\Leftrightarrow x=201,9\)
X: 0.1 + X : 0.5 - X : 25% + X + X = 2019
X: 0.1 + X : 0.5 - X : 0,25 + X + X = 2019
X x 10 + X : 0.5 - X x 4 + X x 1+ X x 1 = 2019
X x( 10+2-4+1+1)=2019
X x 10=2019
x=2019:10
x=201,9
