HAKED BY PAKISTAN 2011
Ôn tập toán 6
Các câu hỏi tương tự
\(\frac{a}{7}-\frac{1}{2}=\frac{1}{b+3}\)
tim so nguyen a, b
1)Tim a, b, x de 4x+19=3a và 2x+5=3b
2)Tìm a, b thuộc N biet a+2b=48 va UCLN(a,b)+3BCNN(a,b)=114
tim x ,a,x+1/2:(-3/4)=-5/4
b,1-(5 3/8 +x-7 5/24):16 2/3=0
tim cac so tu nhien a,b sao cho (a+1)(a^2+1)=(2014b+1)^4
a,Tim n de
+\(\left(n^2+n+1\right)\) chia het cho (n+1)
+7n chia het cho (n-3)
b, Tim so chinh phuong abcd biet ab-cd=1
Tim x
a,-2/3(x-1/4)=1/3(2x-1)
b,1/5.2^x +1/3.2^x+1=1/5.2^7 +1/3.2^8
tim STN x biet
a, 21 thuoc B(x-3)
b, 1-x thuoc U(17)
c, 2x+3 thuoc B(2x-1)
d, x+1 thuoc U(x mu 2+x+3)
e, 3x+1:11-2x
tim cac stn x sao cho :
a)6:(x-1)
b)14:(2.x+3)
Tim x
a.346.124-7.(2x-1)=346
b.4/3+2.(5+7x)=115:5