tim x
(3/8 - x)^3 * 1/16 = 50%
giup minh voi nhe !!
Tim x
3.x + 17 = 2 mu 8 . 2mu 3
Cac ban oi giup minh voi, minh can gap. ai giup to tick cho nhe
3x+17=28.23
3x+17=211
3x+17=2048
3x=2048-17
3x=2031
x=2031:3
x=677
Vậy x=677
3x + 17 = 28.23
3x + 17 = 28+3
3x + 17 = 211
3x + 17 = 2048
3x = 2048 - 17
3x = 2031
x = 2031 : 3
x = 677
Vậy x = 677
3x + 17 = 28 × 23
<=> 3x+17= 28+3=211 =2048
<=> 3x=2048-17=2031
<=>x=2031:3=677
Vậy x = 677
♡♡♡♡♡♡♡
Tim so tu nhien x biet rang:
a/ 8.6+288:(X-3)2=50
b/ (x2 - (62-(82-9.7)3- 7.5)3- 5.3)3= 1 giup minh voi nhe
a/ 8.6+288:(X-3)2=50
48+288:(x-3)2=50
288:(x-3)2=50-48=2
(x-3)2=288:2=144
(x-3)2=122
x-3=12
x=12+3=15
b/ (x2 - (62-(82-9.7)2- 5.3)3= 1
(x2 - (62-(64-9.7)2- 5.3)3= 1
(x2 - (62-(64-63)2- 5.3)3= 1
(x2 - (62-12- 5.3)3= 1
(x2 - (36-1- 15)3= 1
x2 - 203= 1
x2 - 8000= 1
x2=1+8000=8001
x2=................(de sai
b)
{ x2 - [ 62 - ( 82 - 9.7)3 - 7.5]3 - 5.3 }3 = 1
{ x2 + [ 36 - (64 - 63)3 - 35]3 - 15}3 = 1
[ x2 - ( 36 - 13 - 35 ) - 15 ]3 = 1
[ x2 - ( 36 - 1 - 35 ) - 15]3 = 1
[ x2 - ( 35 - 35 ) - 15]3 = 1
[ x2 - 0 - 15]3 = 1
( x2 - 15 )3 = 1
<=> ( x2 - 15)3 = 13
=> x2 - 15 = 1
<=> x2 = 16
=> x = 4
Tim x biet (x+1)(x+2)(x+3)+...+(x+100)=5750
giup minh voi nhe
( x + 1 ) + ( x + 2 ) + ( x + 3 ) +... + ( x + 100 ) = 5750
( x + x + x + ... + x ) + ( 1 + 2 + 3 + ... + 100 ) = 5750
( x . 100 ) + ( 1 . 100 ) . 100 : 2 = 5750
( x . 100 ) + 5050 = 5750
x . 100 = 5750 - 5050
x . 100 = 700
x = 700 : 100
x = 7
Vậy x = 7
( x + 1 ) + ( x + 2 ) + ( x + 3 ) +... + ( x + 100 ) = 5750
( x + x + x + ... + x ) + ( 1 + 2 + 3 + ... + 100 ) = 5750
( x . 100 ) + ( 1 . 100 ) . 100 : 2 = 5750
( x . 100 ) + 5050 = 5750
x . 100 = 5750 - 5050
x . 100 = 700
x = 700 : 100
x = 7
Vậy x = 7
tim chu so tan cung cua tich sau 6 x 16 x 116 x1216 x11996
Cac ban giup minh voi nhe . Lan sau minh giup lai cho.
Chữ số tận cùng là 6 nhé cì 6*6 lúc nào cũng có đuôi là 6
Tích hộ mink nhé
bai 1:tim x
a,48:(7x-15)=8
b,100-3(5-x)=73
c,[(x+32)-17]*2+8=50
giup minh voi !!!!
a,48:(7x-15)=8
7x-15=6
7x=21
x=3
b,100-3(5-x)=73
3(5-x)=27
5-x=9
x=-4
c,[(x+32)-17]*2+8=50
[(x+32)-17]*2=42
(x+32)-17=21
x+32=38
x=6
a)48:(7x-15)=8
(7x-15)=48:8
(7x-15)=6
7x=6+15
7x=21
x=21:7
x=3
b)100-3(5-x)=73
3(5-x)=100-73
3(5-x)=27
5-x=27:3
5-x=9
x=5-9
x=-4
c)[(x+32)-17]x2+8=50
[(x+32)-17]x2=50+8=58
[(x+32)-17]=58:2
x+32 =29+17
x =46-32
x =14
720: (x+3+x x 5) =6 giup toi tim x voi nhe
720: (x + 3 + 5x) = 6
=> 6x + 3 = 120
=> 6x = 117
=> x = 39/2
720:(x+3X5)=6
720:(xX15)=6
=)) x=8 nha
(chú ý: X là nhân, x là số cần tìm)
720:(x+3+x x 5)=6
x+3+ x x 5 =720:6=120
6 x x +3=120
6 x x=120-3=117
x=117:6=19,5
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 .
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
10-2(x+3)=5(x-2)
7(x+3)=5(x-2)
7x+21=5x-10
7x-5x=-10-21
2x=-31
x=-15.5
3^x+3^x+1+3^x+2=351
3^x+3^x*3+3^x*3^2=351
3^x(3+3^2+1)=351
3^x*9=351
3^x=39
3^x=
a) sử dụng tính chất phân phối là sẽ làm đc
b)đặt chung 3^x ra là lm đc
anh chỉ cho câu b thôi nhá câu a dễ rồi chỉ cần chuyển vế thôi
\(3^x+3^{x+1}+3^{x+2}=3^x+3^x.3+3^x.3^2=3^x\left(1+3+3^2\right)=3^x.13=351=>3^x=27=>x=3\)