480+45*4=(x+125)/5+260
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480+45*4 =(x+125):5+260 (x+125):5+260=480+45*4
(x+125):5+260=660
(x+125):5 =660-260
(x+125):5 =400
x+125 =500*4
x+125 =2000
x =2000-125
x =1875
480+45x4=(x+125):5+260
660=(x+125):5+260
(x+125):5=660-260=400
x+125=400x5=2000
x=2000-125
x=1875
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
480+45.4=(x+125):5+260
660=(x+125):5+260
400=(x+125):5
x+125=2000
x=1875
456 + (x - 357) = 1362
=> x - 357 = 1362 - 456
=> x - 357 = 906
=> x = 906 + 357
=> x = 1263
c) (x - 2005) . 2006 = 0
=> x - 2005 = 0 : 2006
=> x - 2005 = 0
=> x = 0 + 2005
=> x = 2005
a) 456 + ( x - 357 ) = 1362
=> x - 357 = 906
=> x = 1263
b) ( 2345 - x ) - 183 = 2014
=> 2345 - x = 2197
=> x = 148
c) ( x - 2005 ) . 2006 = 0
=> x - 2005 = 0
=> x = 2005
còn lại làm tương tự
a) 456 + (x - 357) = 1362
x - 357 = 1362 - 456
x - 357 = 906
x = 906 + 357
x = 1263
Vậy x = 1263
b) (x -2005) . 2006 = 0
x - 2005 = 0 : 2006
x - 2005 = 0
x = 0 + 2005
x = 2005
Vậy x = 2005
c) 2005 . ( x -2006 ) = 2005
x - 2006 = 2005 : 2005
x - 2006 = 1
x = 1 + 2006
x = 2007
Vậy x = 2007
d) (2345 -x ) - 183 = 2014
2345 - x = 2014 + 183
2345 - x = 2197
x = 2345 - 2197
x = 148
Vậy x = 148
e) 480 + 45 .4 = ( x + 125 ) : 5 + 260
480 + 180 = ( x + 125 ) : 5 + 260
660 = ( x + 125 ) : 5 + 260
=> ( x + 125 ) : 5 + 260 = 660
( x + 125 ) : 5 = 660 - 260
( x + 125 ) : 5 = 400
x + 125 = 400 . 5
x + 125 = 2000
x = 2000 - 125
x = 1875
Vậy x = 1875
[(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
\(480+45\cdot4=\frac{\left(x+125\right)}{5}+260\)
\(\frac{\left(x+125\right)}{5}=400\)
\(x+125=2000\)
\(x=1875\)
480+45x4=\(\frac{x+125}{5}+260\)
660=\(\frac{x+125}{5}+260\)
660-260=\(\frac{x+125}{5}\)
400=\(\frac{x+125}{5}\)
400x5=x+125
2000=x+125
x=2000-125
x=1875