a)Ta có 10- 2(x+3)= 5(x-2)
10 - 2x-6= 5x-10
14= 7x
x = 2
b) Ta có : 3x +3x+1+3x+2= 351
3x+3x.3+3x.32=351
3x(1+3+32)=351
3x.13=351
3x=27
x= 3
cau 1: x=2
cau 2: x=3
ung ho nha cac ban ^_^
tim x biet:
10-2(x+3)=5(x-2)
3x+3x+1+3x+2=351
cac ban giup minh voi nhe
nho phai co cach la day
tim x biet:
10-2(x+3)=5(x-2)
3x+3x+1+3x+2=351
cac ban giup minh voi nhe
nho phai co cach la day
giup minh voi
cho 1 so tu nhien co 2 chu so . Biet rang tong cac so tu nhien lien tiep bat dau tu den so nay la 1 so ma 2 chu so tan cung cua no bang chinh so so co 2 chu so ban dau . tim so ban dau
trinh bay cach giai nhu the nao day cac ban giup minh voi
giup mik voi tim x biet
1, 5-(3x+6)>-2x+1
2, -7.(x+2)-3x<6-11x
3, (x+1).(x+2)-x.(x+3)<4-x
4, 6-2x>17+(4-x)
tim so tu nhien x,biet
a, 2x+3x=1505
b,1+35+...+x=3200(xla so le)
c,(x+1)+(X+2)+(x+3)+....+(x+100)=5750
giup minh voi mai minh can roi
cam on cac ban nhieu lam
Tim x biet :
(x + 1) + (x + 2) + (x + 3 )+ ... + (x + 20) = 250
BAI NAY LA BAI SAO DO CAC BAN MINH KHONG BIET LAM CAC BAN GIUP MINH VOI
mn giup minh voi
tim so tu nhien x biet
a, 0.(5-x)=0
b,1+35+.......+x = 3200 ( x la so le )
c, (x+1)+(x+2)+(x+3)+....+(x+100)
d 2x+3x=1505
cam on mn nhieu
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 y , x biet
( x - 1) ( 2y + 3 ) = 24
( x- 5 ) ( x + y ) = 12
( x + 1 ) ( x + 2 ) + ... + ( x +100 ) = 5750
Tim so nguyen to p de : p + 1, p + 2, p + 3 , p + 5 cung la so nguyen to
Cac ban giup minh nhe ! Hom nay minh phai di hoc roi
