Các câu hỏi tương tự
\(\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}vax-2y+3z=14\)
de bai la tim x, y, z biet
giup mk
mk tk
mk dag voi
a) \(\frac{\left(x+\frac{3}{4}\right)\cdot\frac{7}{2}-\frac{1}{6}}{-\left(\frac{4}{5}+\frac{1}{3}\right)\cdot\frac{1}{2}+1}=2\frac{33}{52}\)
b) \(\frac{\left(5-\frac{2}{7}\right)\cdot\frac{7}{9}:\frac{3}{5}}{\left(3x-\frac{5}{6}\right):\frac{1}{7}}=5\frac{5}{21}\)
Bài 7: Tìm x biết
CAC BAN GIUP MK NHA
AI CO CAU TRA LOI NHANH NHAT VA CHINH XAC NHAT THI MK TICK CHO
tim so xyz biet \(\frac{x^2}{4}\)=\(\frac{y^2}{9}\)=\(\frac{z^2}{25}\)va x-y+xy=4
cac ban oi giup oi giup mk voi!!!
\(\frac{x+1}{3}=\frac{y+2}{-4}=\frac{z-3}{5}va3x+2y+4z=47\)
tim x, y, z biet
mk tk
mk gap
giup mk
\(\frac{x-5}{3}=\frac{y-4}{4}=\frac{z-3}{5}vax+y+z=36\)
tim x, y ,z, biet
giup mk
mk tk
mk dg gap
tim da thuc B biet:
\(B-\left(3x^6-4xy^5+\frac{1}{3}xy^2-\frac{3}{2}\right)=\left(7x^6-\frac{1}{2}xy^5-xy^2-\frac{1}{3}\right)\)
giup mk nha cac bn , ai co cach giai ro rang mk se tick 3 cai
tim x biet
|3x+9| + 3|x-1|=12-|x+1|20
giup mk voi mk danh dau cho
1)Tim x biet :3x-1/40-5x
2)3 lop 7A ,7B ,7C trong duoc tat ca 1020 cay.So cay lop 7B trong duoc bang 8/9 so cay lop 7A trong duoc.So cay lop 7C trong duoc bang 17/16 so cay lop 7B trong duoc.Hoi moi lop trong duoc bao nhieu cay ?
3)Tim x trong ti le thuc :
a,x-1/x+5=6/7
b,x^2/6=24/25
c,x-2/x-1=x-4/x-7(x khac 1,x khac -7)
d,7/x-1=x+1/9
Moi nguoi giup minh voi nhe minh xin cam on
tim x biet
a,|2x+1| = 3x-2
b,\(\frac{5}{x}\)=\(\frac{x}{25}\)
moi ng oi giup voi mai minh di hoc rui