\(2448:\left[119-\left(x-6\right)\right]=24\)
\(119-\left(x-6\right)=2448:24\)
\(119-\left(x-6\right)=102\)
\(x-6=119-102\)
\(x-6=17\)
\(x=17+6\)
\(x=23\)( thỏa mãn \(x\in N\) )
vậy x = 23
\(2016-100\cdot\left(x+11\right)=2^7:2^3\)
\(2016-100\cdot\left(x+11\right)=128:8\)
\(2016-100\cdot\left(x+11\right)=16\)
\(100\cdot\left(x+11\right)=2016-16\)
\(100\cdot\left(x+11\right)=2000\)
\(x+11=2000:100\)
\(x+11=20\)
\(x=20-11\)
\(x=9\)( thỏa mãn \(x\in N\))
vậy x = 9
1) 2448 : [ 119 - (x - 6)] = 24
=> 119 - (x - 6) = 2448 : 24
=> 119 - x + 6 = 102
=> 125 - x = 102
=> x = 125 - 102 = 23 (thỏa mãn x thuộc N)
Vậy x = 23
2) 2016 - 100.(x + 11) = 2^7 : 2^3
=> 2016 - 100.(x + 11) = 2^4 = 16
=> 100.(x+11) = 2016 - 16 = 2000
=> x + 11 = 2000 : 100 = 20
=> x = 20 -11 = 9 ( thỏa mãn)
Vậy x =9
Tìm STN x
2448:[119-(x-6)]= 24
119-(x-6)= 2448:24
119-(x-6)= 102
x-6= 119-102
x-6= 17
x = 17+6
x = 23
2016-100.(x+11)=27:23
2016-100.(x+11)=24
2016-100.(x+11)=16
100.(x+11)=2016-16
100.(x+11)=2000
x+11=2000:100
x+11=20
x =20-11
x =9
Chúc bạn học giỏi !?
