a){x-[52+(35-80.3)3-51]50+14}=20
=>x-[25+(243-240)3-51]50+14=20
=>x-[25+33-51]50+14=20
=>x-[25+27-51]50+14=20
=>x-[52-51]50+14=20
=>x-150+14=20
=>x-1+14=20
=>x-1=20-14
=>x-1=6
=>x=6+1
=>x=7
a){x-[52+(35-80.3)3-51]50+14}=20
=>x-[25+(243-240)3-51]50+14=20
=>x-[25+33-51]50+14=20
=>x-[25+27-51]50+14=20
=>x-[52-51]50+14=20
=>x-150+14=20
=>x-1+14=20
=>x-1=20-14
=>x-1=6
=>x=6+1
=>x=7
b){x-[5^2+(3^5-80.3)^3-51]^50+14}=20
tìm x
tìm x biết
a)680-(5x+60)=425
b){x-[5^2+(3^5-80.3)^3-51]^50+14}=20
Bài 1 : Tìm số tự nhiên x biết :
a)680-(5x+60)=425
b){x-[5^2+(3^5-80.3)^3-51]^50+14}=20
3) tìm x thuộc z, biết
a) x-43=(35-x)-48
b) 305-x+14=48+(x-23)
c) -(-x -6+85)=(x+51)-54
d)-(35-x)-(37-x)= 33-x
(14/5 × X - 50) : 2/3 =51
Ai làm nhanh đúng mk cho 3 tk
1. Tìm x\(\in\)Z biết x+(x+1)+(x+2)+(x+3)+...+19+20=20
2. Cho x1+x2+x3+...+x49+x50+x51=0 và x1+x2=x3+x4=x5+x6=...=x49+x50=x50+x51=1.Tính x50
Tìm x thuộc N biet
1) 19+(x-23)=50
2)(273-x) -140=34
3)56-(x-14)=22
4)172-(137-x)=93
5)13.(x-14)=91
6)(13-x).17=51
Tìm x biết
a) ( x - 14) - 20 = 0
1.Tìm x:
a)60 - 3 (x - 2) = 51
b)4 x - 20 = 2^5 : 2^2
c)8.6 + 288 : (x - 3)^2=50
d)70 - 5 ( x-3 ) = 50
e)10 + 2 x = 4^5 : 4^3
f)3^x - 4^3 = 17
g)( 7x-11)^3 = 2^5 . 5^2 + 200
2. Thực hiện phép tính
a)2^4 . 38 - 264 . 37
b)(2^9 . 3 + 2^9 . 5 : 2^9
c)13^2 - ( 5^2 . 4 + 2^2 . 15 )
d)15 . 141 + 59 . 15
e)20 - [ 10 - (2021 - 1 )^0 ]
f)17 . 85 + 15 . 17 -120
g)2^3 . 17 - 2^3 . 14