ai choi bang bang ma acc co thanh giong thi cho mik choi chung vs.xin hua ko pha nik ko doi mk
co ai choi bang bang ko tui giup cho
B1)Tim X biet
A)3(X-4)-(8-X)=12
B)4(X-5)-(X=7)=-19
C)7(X-3)-5(3-X)=11X-5
B2)a)Chung to rang cac phan so tren bang nhau
A)25/53:2525/5353:252525/535353
B)37/41:3737/4141:373737/414141
b)Tim phan so bang phan so 11/33 va biet rang hieu cua mau va tu cua no bang 6
ai choi hau vuong tren zing me ko
ai co acc bang bang co quan cong thi minh choi vs nhe
nho la ko phai + dong nghe
De tim so tu nhien x ,biet rang neu lay so do tru di 3 roi chia cho 8 thi dc 12 ,ta co the viet (x-3) :8=12roi tim x , ta duoc x =99.
Bang cach lam nhu tren ,hay tim so tu nhien x,biet rang neu no nhan voi 3 roi tru di 8 ,sau do chia cho 4 thi dc 7
ai co acc bang bang zing cho muon voi
ai chơi bang bang zing me ko