x - 1 = 2
x = 2 + 1
x = 3
k mk nha thanks bn nhiuf
x-1=2
x =2-1
x =1 nhớ k cho mình nha
tim x
x+3=5
biết x=2
+Tim x thuoc N, biet :
a/ x+(x+1)+(x+2)+....+(x+30)=1240
b/1+2+3+........+x=210
tim x,y biet (x+1)(x-y)=5
tim so tu nhien x y sao cho (x-2).(2y+3)=26tim so tu nhien x y sao cho (x-2).(2y+3)=26
tim x biet
x + 1 = x + 1 = 500
minh cho cac ban nick nay:
ten nick: caiquan
mat khau: cai quan
tim so tu nhien x biet,neu 34 chia cho x thi duoc thuong la 11 va so du la 1.
tim so be nhat sao cho khi viet so do vao ben phai so 2009 thi duoc so co sau chu so chia het cho 125.
bai 2; tim x
184250 : (x nhan 134 ) = 125
Tim x
A)x+12/15=7/5
B)x-6/8=3/15
C)x:17/25=15/34
D)1/5×x=9/45
tim x biet
3 phan x tru 5=am 4 phan x cong 2
ai giai xong minh k
