Tim X Biet :
( -12 )^2 : x = 56 + 10 . 13 . x
Ghi cac buoc ro rang thi moi tik
1, tim gia tri lon nhat cua
C=(-21)-|x-4|
D=-|-13|-|x+3|
giup minh voi nho ghi cac buoc ro rang nha
tim gia tri nho nhat cua
A=|x-2|+11 vi sao
B=-17+|x+1| vi sao
giai giup minh nhe nha nho co cac tinh voi
Tim so nguyen x biet :
9+54-(-948)+x=-153
(ghi ro loi giai thi moi tik)
9 + 54 - (-948) + x = -153
=> 9 + 54 + 948 + x = -153
=> 1011 + x = -153
=> x = -153 - 1011
=> x = -1164
1, tim x
5+x-3=5-(x+4)
x-(5|-7|+3)=|-8|+6-2
|x-3|+7
12-3|x-1|=6
cac ban giup minh nhe nho cac buoc tinh ro rang nha minh se like cho
\(5+x-3=5-\left(x+4\right)\)
\(5+x-3=5-x-4\)
\(x+x=5-4-5+3\)
\(2x=-1\)
\(x=\frac{-1}{2}\)
vay \(x=\frac{-1}{2}\)
\(x-\left(5.\left|-7\right|+3\right)=\left|-8\right|+6-2\)
\(x-\left(5.7+3\right)=8+6-2\)
\(x-38=12\)
\(x=12+38\)
\(x=50\)
vay \(x=50\)
\(\left|x-3\right|+7=0\)
\(\left|x-3\right|=-7\)( ko ton tai)
\(12-3\left|x-1\right|=6\)
\(3\left|x-1\right|=6\)
\(\left|x-1\right|=2\)
\(\Rightarrow\orbr{\begin{cases}x-1=2\\x-1=-2\end{cases}}\Rightarrow\orbr{\begin{cases}x=3\\x=-1\end{cases}}\)
vay \(\orbr{\begin{cases}x=3\\x=-1\end{cases}}\)
Tim x,y biet (x+2).(3-x)>0 ......(cac ban trinh bay ro rang giup minh nha)
Tim so tu nhien a biet : -a - 7 = -9 ( ghi ro loi giai thi moi tik )
-a-7=-9
-a=-9+7
-a=-2
=> a=2
Vậy : a=2
TÍCH NHA !
-a - 7 = -9
-a = ( -9 ) + 7
-a = -2
Vậy -a = - 2
Bai 1 :
a) Tim abcd biet : a x bcd = 1001 b) Tim ab ; biet ab x aba = abab
Bai 2 Tim so co hai chu so, biet rang neu viet them chu so 6 vao ben trai so da cho thi duoc so moi gap 7 lan so cu.
Bai 3: Tim so co ba chu so, biet rang neu viet them chu so 3 vao ben trai so da cho thi duoc so moi gap 7 lan so do
Bai 4 :
a) Tim cac so a7b cung chia het cho 5 va 9 b) Tim cac aso 1ab cung chia het cho 5 va 3
Bai 5 : Tim so co hai chu so, biet rang so do chia cho hang don vi cua no thi duoc thuong la 6, du 5.
Bai 6: Cho so co hai chu so trong do chu so hang don vi la 7. Tim so da cho, biet rang neu chia so do cho tong cac chu so cua no thi duoc thuong la 5 va du 12.
tim 1 so tu nhien co 2 chu so biet rang neu viet cac chu so cua so y theo thu tu nguoc lai thi duoc so moi lay so moi chia cho so ban dau thi duoc thuong la 3 DU 13
BAN NAO TRA LOI DUOC THI MINH K VA KET BAN
BAN NAO TRA LOI DUOC THI MO=INH K CHO VA KB NUA NHA
Moi nguoi oi giai giup toi cau nay voi mot quang duong dai 500met 1 nguoi di bo tu diem xuat phat cu 3 buoc thi lui 2 buoc hoi nguoi do phai di bao nhieu buoc thi het quang duong biet rang moi buoc la 1/2 met
di 3 buoc lui 2 buoc=> tien 1 buoc=> di 100 buoc de het quang duong
sorry, di 1000 buoc de het quang duong
tim x thuoc Z biet:
|x-5|+x+3=16
|x-4|>x+2
||x+5|-4|=3
Cach lam nua nhe
minh chua biet cach lam,cac ban phaiviet cach lam vao minh moi tick
ko bat buoc lam tat ca cac cau