a) 62 . 22.5 :[3.12-(2x -6)] =23.5
36 . 4.5: [36-(2x-6)] = 8.5
720:[36-(2x-6)]= 40
36-(2x-6)= 720:40
36-(2x-6)=18
2x-6=18
2x=24
x=12
b)8x-3x=627:625+44:11
(8-3) .x=627-25+4
5x=62+4
5x=36+4
5x=40
x=8
a) 8x - 3x = 625+ 44 : 11
b) 3 : ( dấu chia hết) (x + 1 )
8x-3x=6 mũ 27:6 mũ 25+44:11
chỉ mk vs, mk sắp kt r
tìm x biết
a,2^11=x
b, 2^2016=x
c,(2x+1)^3=125
d, (2x-3)^2=625
e(2x-4)^2014+(3x-6)^2016< hoặc bằng 0
bài 2 tìm x biết
a)128-3(x+4)=23 d)720:[41-(2x-5)]=23.5
b)[(4x+28).3+55]:5 =35 e)123-5.(x+4)=38
c)(12x-43).83=4.84 g)(3x-24).73=2.74
nhớ giúp nhaaaaa
Tìm số tự nhiên x, biết
a) 2 x : 2 = 8
b) 3 x : 3 2 = 243
c) 625 : 5 x = 52
d) 3 x : 27 = 9
e) 7 x + 1 : 7 = 49
f) 112 x + 1 : 11 = 121
Tìm số tự nhiên x, biết
a, 2 x : 2 = 8
b, 3 x : 3 2 = 243
c, 625 : 5 x = 5 2
d, 3 x : 27 = 9
e, 7 x + 1 : 7 = 49
f, 11 2 x + 1 : 11 = 121
tìm x
a) 7x - 5 = 16
b) 156 -2x = 82
c) 10x + 65 = 125
d) 8x + 2x = 25.2
e) 15 + 5x = 40
f) 5x + 2x = 6 -5
g) 5x + x = 150 : 2 + 3
h) 6x + 3x = 5 : 5 + 3
i) 5x + 3x = 3 : 3 . 4 + 12
j) 4x + 2x = 68 - 2 :2
k) 5x + x = 39 - 3 : 3
l) 7x - x = 5 : 5 + 3.2 - 7
m) 7x -2 x = 6 : 6 + 44 : 11
n) 0 : x = 0
o) 3x = 9
p) 4x = 64
q) 2x = 16
r) 9x - 1 = 9
s) x4 = 16
t) 2x : 2 = 1
ai nhanh mk tick cho !!!!!!!
Tim x biet
A, 2x +23x = 625
B, (2^2+4^2) x + 2^4 ×5 ×x =100
C, (3x + 1)^2 = 6^2 + 8^2
D, (7x -11)^3 = 7^2 × 5^2 - 15^2
E, (2x- 1)^4 = 3× (3^2+4^3+2)
Tìm \(y,x\)
a) x + 2x + 3x + .... + 30x = 11 625
b)x * ( y - 1 ) - 3y + 3 = 0
