480+45.4={x+125}:5+260
Tim x biết 480+45.4= (x+125):5+260
480 + 180 = ( x + 125 ) : 5 + 260
( x + 125 ) : 5 + 260 = 660
( x + 125 ) : 5 = 660 - 260 = 400
x + 125 = 400 . 5 = 2000
x = 2000 - 125 = 1875
480+180=(x+125):5+260
(x+125):5+260=660
(x+125):5=400
x+125=2000
x=1875
tìm x
480+45.4=(x+125):5+260
Tìm x:
480=45.4=(x+125):5+260
[(x+50).50-50]:50=50
[(x+50).50-50]:50=50
(x+50).50-50=50.50
(x+50).50-50=2500
(x+50).50=2500+50
(x+50).50=2550
x+50=2550:50
x+50=51
x=51-50
x=1
Tìm x
[(x+50).50-50]:50=50
480+45.4=(x+125):5+260
1) 50x50=2500
( x+50).50=2500+50=2550
x+50 =2550:50=51
x =51-50=1
tìm x :
( x - 2 005 ). 2 006 = 0
d) 480 + 45.4 = ( x + 125 ) : 5 + 260
(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
480+45.4=(x+125):5+260
Giúp mình với cần gấp
mk nhầm đọc ko kĩ đề nhân 4 tưởng nhân 2^^
\(\text{480+45.4=(x+125):5+260 }\\ \left(x+125\right):5+260=660\\ \left(x+125\right):5=660-260=400\\ x+125=400.5=2000\\ x=2000-125=1875\)
\(\text{480+45.4=(x+125):5+260 }\\ \left(x +125\right):5+260=570\\ \left(x+125\right):5=570-260=310\\ \left(x+125\right)=310.5=1550\\ x=1550-125=1425\)
[( x + 50).50-50]:50 = 50
480 + 45.4 = (x + 125) :5 + 260;
480+45.4=(x+125) : 5 + 260
Bạn nào trả lời dùm mình thì giải thích cách làm luôn nha !
GIẢI
480 + 45 . 4 = (x+125) : 5 + 260
<=> (x+125) : 5 + 260 = 660
<=> (x+125) : 5 = 660 - 260 = 400
<=> x + 125 = 400 . 5 = 2000
<=> x = 2000 - 125
<=> x = 1875
480+180=(x+125):5+260
(x+125):5=660-260
x+125=400*5
x=2000+125
x=2125
(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
nhầm
câu c :
=> 480 + 180 = (x + 125) : 5 + 260
=> 660 = (x + 125) : 5 + 260
=> (x + 125) : 5 = 400
=> x + 125 = 2000
=> x = 1875
câu e :
=> (x + 50) . 50 - 50 = 2500
=> (x + 50) . 50 = 2550
=> x + 50 = 51
=> x = 1
a/ = (195 - 195) : (1945 + 1014) = 0 : (1945 + 1014) = 0
b/ => x - 2005 = 0 => x = 0 + 2005 = 2005
c/ => 480 + 180 = (x + 125) : 5 + 260
=> 300 = (x + 125) : 5 + 260
=> (x + 125) : 5 = 40
=> x + 125 = 8
=> x = -117
d/ => x - 2006 = 1 => x = 2007
e/ => (x + 50) . 50 - 50 = 1
=> (x + 50) . 50 = 51
=> x + 50 = 51/50
=> x = -2449/50