(x * 0,25 +1999)* 2000=(53 +1999) *2000
x* 0.25 = 53
=> x = 53 : 0.25
x = 212
Ta có \(\left(x.0,25+1999\right).2000=\left(53+1999\right).2000\)
\(\Rightarrow\frac{1}{4}x+1999=53+1999\)
\(\Rightarrow\frac{1}{4}x=53\)
\(\Rightarrow x=53.4\)
\(\Rightarrow x=212\)
(x . 0,25 + 1999) . 2000 = (53 + 1999) . 2000
x . 0,25 = 53
x = 53 : 0,25
x = 212
(x.0,25+1999)=(53+1999).2000:2000
(=)x.0,25+1999=53+1999
(=)x.0,25=53
(=)x=212
( x * 0,25 + 1999 ) * 2000 = ( 53 + 1999) * 2000
x * 0,25 + 1999 = ( 53 + 1999 ) * 2000 : 2000
x * 0,25 + 1999 = ( 53 + 1999 ) * 1
x * 0,25 + 1999 = 53 + 1999
x * 0,25 = 53 + 1999 - 1999
x * 0,25 = 53 + ( 1999 - 1999)
x * 0,25 = 53 + 0
x * 0,25 = 53
x = 53 : 0,25
x = 212
Vậy x = 212
( X x 0 , 25 + 1999 ) x 2000 = ( 53 + 1999 ) x 2000
X x 0 , 25 = 53
X = 53 : 0 , 25
X = 212
Tk nha!!
(x . 0,25 + 1999) . 2000 = (53 + 1999) . 2000
x . 0,25 = 53
x = 53 : 0,25
x = 212
hok tốt