710*100+260+......+125
a) 770:[(20x+100);x]=35
b) [(8x-14):2-2].31=341
c)25.[260-(x+110)-125=0
khó quá bạn nào giúp mình với
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480+45x4=(x+125) : 5+260
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+45x4=(x+125):5+260
(x+125):5+260=480+45x4
(x+125):5+260=660
( số nào + 125 ) : 5 + 260 = 660
Bạn đặt số nào là x nhé :
( 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
ta gọi số đó là x
( x + 125 ) : 5 + 260 = 660
( x + 125 ) : 5 = 660 - 260
( x + 125 ) : 5 = 400
x + 125 = 400 x 5
x + 125 = 2000
x = 2000 - 125
x = 1875
nha bn
480+45*4=(x+125)/5+260
\(480+45\cdot4=\frac{\left(x+125\right)}{5}+260\)
\(\frac{\left(x+125\right)}{5}=400\)
\(x+125=2000\)
\(x=1875\)
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
x = 1875
Điểm âm của mik chỉ còn 109 nữa thôi, các bn giúp mik nha
ai giúp mik, mik sẽ giúp lại
cảm ơn trc~~~
480+45.4={x+125}:5+260
480+45.4=(x+125):5+260
660=(x+125):5+260
400=(x+125):5
x+125=2000
x=1875
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
b) 710 - 1/2 x [100 - 3 x ( x + 1 ) ] = 2
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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