lap bang xet dau cach bieu thuc

1/x-1+1/x+3>1/x+2

BT: Tim x biet

a, / 2 + x / + / x - 7 / = 3    (bat dang thuc)  

b, / 13 - x / + / 6 + x / =7 (bat dang thuc)

c, / 8 + x / + / x - 5 / = 17 ( lap bang xet dau)

d, / 16 - x / + / 7 + x / = 22

e, / 8 + x / + / x - 8 / = 10           

( "/" la dau gia tri tuyet doi nha )

(y-2)(2x+3)=6 lap bang xet

co ai bk bao nhieu diem ioe cap thanh pho thi dau ko? lop 7 nha

So hoc sinh lop 6A bang \(\frac{3}{4}\)so hoc sinh lop 6B . Neu chuyen 6 hoc sinh o lop 6B sang lop 6A thi so hoc sinh lop 6A bang \(\frac{14}{13}\)so hoc sinh lop 6B . tinh so hoc sinh moi lop ban dau 

MINH CAN CACH LAM  GAP

AI NHANH MINH TK

67.12+67.21+67.45=?

Nho tinh bang cach thuan tien nha,ah ma dau nhan kieu cua mk thi cac bn tu lop 6 tro len se biet

em Ha co soi day dai 1,25m em dung day do do CR cua lop hoc sau 4 lan cang day do lien tiep thi khoang cach giua dau day va mep tuong con lai bang 1/5 do dai soi day hoi CR lop hoc

MOT GV

THEO DOI THOI GIAN LAM MOT BAI TAP CUA 30 HS

DAU HIEU?

LAP BANG TAN SO NHAN XET

TINH SO TRUNG BINH CONG

BIAU DIEN BANG BIEU DO DOAN THANG

Em Ha co soi day dai 1.25m ,em dung day do do do chieu rong cua lop hoc sau 4 lan can day do lien tiep thi khoang cach giua dau day va met tuong con lai bang 1/5 do dai soi day .Hoi chieu rong lop hoc