(x-2005).2006 = 0
x-2005 = 0:2006
x-2005 = 0
x = 0+2005
x = 2005
480+45.4 = (x+125):5+260
48+180 = x:5+125:5+260
228 = x:5+285
228-285 = x:5
-57 = x:5
-57.5 = x
-285 = x
tìm x
480+45.4=(x+125):5+260
Tìm x
[(x+50).50-50]:50=50
480+45.4=(x+125):5+260
480+45.4={x+125}:5+260
Bài 1: Tính một cách hợp lí:
a) 1234.2014 + 2014. 8766
b) 1357. 2468 -2468.357
c) (14678:2 + 2476). (2576-2575)
d) (195-13.15) : (1945 + 1014)
bài 2: Tìm x
a) 456+ (x - 357) = 1362
b) ( 2345 - x) - 183= 2014
c) (x-2 005). 2006=0
d) 480+45.4= (x+125):5+260
e) 2005. (x-2006)= 2005
g) [(x+50).50-50]:50= 50
Tìm x:
480=45.4=(x+125):5+260
[(x+50).50-50]:50=50
[( x + 50).50-50]:50 = 50
480 + 45.4 = (x + 125) :5 + 260;
GIÚP MÌNH GIẢI HAI BÀI NÀY NHÉ
a)480+45.4=(x+125:5+260)
b)x.(x+1)=2+4+6+8+10+...+2500
Cảm ƠN
(195-13.15):(1945+1014)
(x-2005).2006=0
480+45.4=(x+125):5+260
2005.(x-2006)=2005
[(x+50).50-50]:50=50
a (x-2005). 2006=0
b 2005.(x-2006)=2005
c 480+45.4=(x+125):5+260
d [(x+50).50-50]:50=50
