Các câu hỏi tương tự
47/53. ( 17/3 - 53/47) + 17/3 .( 6/17 - 47/53)
5/7 . ( 1/2 -1/3 +4/7 ) + ( 1/3 - 1/2 -4/7 ) :7/5
tim x
3 (x-1/2 ) - 5 ( x- 2/3) = 3/2x
help me mik dang can gap . cam on
Tim so nguyen x, biet :
a) (1/2 - 1/3) . 6x + 6x + 2 = 615 + 618.
b) (1/2 - 1/6) . 3x + 4 - 4 . 3x = 316 - 4 . 313.
Minh dang can gap. Ai biet thi chi giup minh voi nhe! Cam on moi nguoi .
tinh gia tri bieu thuc:
1+[-3]+5+[-7]+...+97+[-99]+101
[GIAI CHI TIET HO MINH NHA DANG CAN GAP MINH CAM ON NHIEU ]
1.a, cho a=3+3^2+3^3+3^4+...+3^90. chung minh rang achia het cho 11 vs 13
b, tim tat ca cac cap so nguyen x,y sao cho x.y-2x+y+1=0
minh dang can gap nhanh len cac ban@gmail.cm
bai 1, tim x, biet
a, (-x+31)-39=-69 b, -120-(-30-x)=-50 c, /x/ -5=-1 d, /x+2/-12=-1
e, \(\left(3x-2^4\right).7^3=2.7^5\)
giup minh voi minh can gap, cam on cac ban nhieu
tim x biet N thuoc
a) 2-(x+3)=1+2+3+4+5+..............+99
b)(x+1)+(x+2)+(x+3)+(x+4)+...............+(x+100)=5750
giup mk nha cac ban , mk dang can gap lam
Cac ban giai giup minh nha : Tim x
a)3 1/2-1/2.x=2/3. b) 1/3+2/3÷x=-7
c) x÷ 3/4 +1/4=-2/3. d) -2/3-1/3.(2x-5)=2/3
Cho A = 1/1.2 + 1/3.4 + 1/5.6 +.......+ 1/49.50.
B = 1 + 1/2 + 1/3 + 1/4 +........+ 1/49 + 1/50.
C = 1/2 + 1/4 + 1/6 +.........+ 1/48 + 1/50.
CMR A = B - 2C.
Minh dang can gap. Ai biet thi chi giup minh nhe ! Cam on moi nguoi nhieu lam.
1. tim xa) x+4 chia het x+1 b) x-7 chia het x-3 c) (4x+3) chia het x+2 d) 4x-5 chia het x2. tim x,ya) (x-3).(2y+1)7b) (2x+1).(3y-2)-553. tim xa) (x+1)+(x+3)+(x+5)+...+(x+99)0b) (x-3)+(x-2)+(x-1)+...+10+1111 CAC BAN GIUP MINH CLIK CHO, CAM ON CAC BAN RAT NHIEU !!! CHIEU MIK PHAI NOP ROI
Đọc tiếp
1. tim x
a) x+4 chia het x+1 b) x-7 chia het x-3 c) (4x+3) chia het x+2 d) 4x-5 chia het x
2. tim x,y
a) (x-3).(2y+1)=7
b) (2x+1).(3y-2)=-55
3. tim x
a) (x+1)+(x+3)+(x+5)+...+(x+99)=0
b) (x-3)+(x-2)+(x-1)+...+10+11=11
CAC BAN GIUP MINH CLIK CHO, CAM ON CAC BAN RAT NHIEU !!! CHIEU MIK PHAI NOP ROI