tim y
yx42+yx57+y=25400
Y x 42 +Yx 57 + Y = 25400
TIM Y
Y x 42 +Yx 57 + Y = 25400
=> Y x (42 + 57 + 1) = 25400
=> Y x 100 = 25400
=> Y = 25400 : 100
=> Y = 254
Y x 42 +Yx 57 + Y = 25400
Y x ( 42 + 57 ) + Y = 25400
Y x 99 + Y = 25400
Yx42+Yx57+Y=254000
Y.42+Y.57+Y=254000
=> Y(42+57+1)=254000
=> 100Y=254000
=>Y=254000:100=2540
tìm y
a. y x 42 + y x 57 + y = 25400
b. 142 x y - 41 x y - y = 408000
a) y x 42 + y x 57 + y = 25 400
y x ( 42 + 57 + 1 ) = 25 400
y x 100 = 25 400
y = 25 400 : 100
y = 254
b) 142 x y - 41 x y - y = 408 000
y x ( 142 - 41 - 1 ) = 408 000
y x 100 = 408 000
y = 408 000 : 100
y = 4 080
a.y*(42+57+1)=25400
y*100=25400
y=25400:100=254
b.(142-41-1)*y=408000
100*y=408000
y=408000:100=4080
a. y x 42 + y x 57 + y = 25400
y = 25400 : (42 + 57 + 1)
y = 25400 : 100
y = 254.
b. 142 x y - 41 x y - y = 408000
y = 408000 : (142 - 41 - 1)
y = 408000 : 100
y = 4080.
Tìm X: X x 42 + X x 57 + X = 25400
Xx42+Xx57+X=25400
Xx(42+57+1)=25400
Xx100=25400
X=25400:100
X=254
tìm x biết:
a) x×42+x×54+x×4=25400 b)142×x−41×x−x=40800
giúp tui tui đang cần gấp thanks
\(a,\Rightarrow x\times\left(42+54+4\right)=25400\\ \Rightarrow x\times100=25400\\ \Rightarrow x=254\\ b,\Rightarrow x\times\left(142-41-1\right)=40800\\ \Rightarrow x\times100=40800\\ \Rightarrow x=408\)
a) \(x\)(42+54+4)=15400 b) (142-41-1)\(x\)=10800
\(x\)x100=15400 100x\(x\)=10800
\(x\)=15400:100 \(x\)=10800:100
\(x\)=154 \(x\)=108
Tìm x
X x 45 + X x 37 + X = 25400
142 x X - 41 x X - X = 4080
Tìm x
a, X x 45 + X x 37 + X = 25400
b, 142 x X - 41 x X - X = 4080
tim(x;y) biet -|2x+4| -|y+5| lon hon bang 0 .Tim cap (x;y)
tim x dua vao quan he uoc boi:
tim so tu nhien x sao cho x-1 la uoc cua 12
tim so tu nhien x sao cho 2x+1 la uoc cua 28
tim so tu nhien x sao cho x+15 la boi cua x+3
tim cac so nguyen x,y sao cho (x+1)(y-2)=3
tim so nguyen x sao cho(x+2).(y-1)=2
tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180
tim so nguyen to x,y biet x+y=12 va UCLL (x:y)=5
tim so tu nhien x,y biet x+y=32 va UCLL (x:y)=8
tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100<x<150
tim so x nho nhat khac 0b biet x chia het cho 24 va 30
40 chia het cho x . 56 chia het cho x va x>6