Tim x biet :
c ) - ( x + 48 ) + 213 = -16
tim x biet (x-32):16=48
(x - 32) : 16 = 48
x - 32 = 48 x 16
x - 32 = 768
x = 768 + 32
x = 800
tim x biet x-32 chia 16=48 x=
X =
tim so tu nhien x biet:7/9+16/48<x<43/8+0.125
ta có: 10/9 < x < 11/2
=> 1 < x < = 5
=> x = {2;3;4;5}
\(\frac{7}{9}+\frac{16}{48}< x< \frac{43}{8}+0.125\)
\(\frac{10}{9}< x< \frac{11}{2}\)
\(1.11< x< 5.5\)
Vậy \(x=2;3;4;5.\)
Ta có:7/9+16/48=7/9+1/3=10/9
43/8+0.125=43/8+1/8=11/2
=>10/9<x<11/2
=>9/9<10/9<x<11/2<12/2
=>1<x<6
Vì x là số tự nhiên nên x=2,3,4,5
Vậy x=2,3,4,5.
tim x,biet
1) 135 +(121-x) = 231
2) x - 32 chia 16 = 48
135 + ( 121 - x ) = 231
121 - x = 231 - 135
121 - x = 96
x = 121 - 96
x = 25
x - 32 : 16 = 48
x- 2 = 48
x= 48 + 2
x = 50
tim cac so tu nhien x biet :
a) 48 + 288 : ( x -3) = 50
b) 2x . 16 =128
a, 48 + 288 : ( x - 3 ) = 50
288 : ( x - 3 ) = 50 - 48
288 : ( x - 3 ) = 2
x - 3 = 288 : 2
x - 3 = 144
x = 144 + 3
x = 147
b, \(2^x\) . 16 = 128
\(2^x\) = 128 : 16
\(2^x\) = 8
\(2^x\) = \(2^3\)
=> x = 3
48 + 288 : ( x - 3 ) = 50
288 : ( x - 3 ) = 50 - 48
288 : ( x - 3 ) = 2
( x - 3 ) = 288 : 2
x - 3 = 144
x = 144 + 3
x = 147
2^x . 16 = 128
2^x . 2^4 = 2^7
2^x = 2^7 : 2^4
2^x = 2^3
x = 3
11 - (x+48) = 97
-(x+48) + 213 = -16
tìm x
11 - (x+48) = 97
=> x + 48 = 97 - 11
=> x + 48 = 86
=> x = 86 - 48
=> x = 38
vậy____
-(x+48) + 213 = -16
=> -x - 48 = -16 - 213
=> -x - 48 = -229
=> -x = -229 + 28
=> -x = -201
=> x = 201
vậy____
1, 11-(x+48)=97
\(\Rightarrow x+48=11-97\)
\(\Rightarrow x+48=-86\)
\(\Rightarrow x+48=-134\)
Vậy x=134
2,-(x+48)+213=-16
\(\Rightarrow-\left(x+48\right)=-16-213\)
\(\Rightarrow-\left(x+48\right)=-229\)
\(\Rightarrow x+48=229\)
\(\Rightarrow x=229-48\)
\(\Rightarrow x=181\)
Vậy x=181
11 - (x+48) = 97
x + 48 = 11 - 97
x + 48 = - 86
x = - 86 - 48
x = - 134
-(x+48) + 213 = -16
- ( x + 48 ) = - 16 - 213
- ( x + 48 ) = - 229
- x - 48 = - 229
- x = - 229 + 48
- x = - 181
=> x = 181
tim cac so tu nhien biet x biet
24 : x + 16 : x =5
Tim x biet ( x-3)^4 = 16
4^(x-3) = 16
(x - 3)4 =16
=> 24 = 16
=> x- 3 = 2
=> x = 5
4(x-3) =16
=> 42 = 16
=> x-3 = 2
=> x = 5
(x - 3)4 = 16
(x - 3)4 = 24 = (-2)4
=> \(\orbr{\begin{cases}x-3=2\\x-3=-2\end{cases}}\)=> \(\orbr{\begin{cases}x=5\\x=1\end{cases}}\)
4x-3 = 16
4x-3 = 42
=> x - 3 = 2
=> x = 2 + 3
=> x = 5
tim x biet x.3+5.x=16
\(x.3+5.x=16\)
\(\Rightarrow x.\left(3+5\right)=16\)
\(\Rightarrow x.8=16\)
\(\Rightarrow x=\frac{16}{8}\)
\(\Rightarrow x=2\)
vậy \(x=2\)
\(x.3+5.x=16\)
\(\left(3+5\right).x=16\)
\(8.x16\)
\(x=16:8\)
\(x=2\)
X x 3 + 5 x X = 16
X x ( 3 + 5 ) = 16
X x 8 = 16
X = 16 : 8
X = 2