Các câu hỏi tương tự
Tim x biet: x+1/1+2x+3/3+3x+5/5+...............+20x+39/9=22+4/3+6/5+................+40/39
tim so nguyen x bt
x – 18 = 22 – 47
b) 4 2 – x = 53 – 60
c) 25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x)
|2x-5|-7=22
15-|2x+3|=8
(2x+4)(x^2+9)=0
2(x-5)-3(x-4)=-6+15.(-3)
Tìm x
(2x-7)+17=6
12-2.(3-3x)=-2
-14+3.(-x+5)=-20
-90:5.(-3-2x)=6
(x+1).(x-3)=0
(2x-2).(x+4)=0
(22+4).(x+3)=0
(5-x).(6-2x)=0
3.(x+1)+5=x+8
-4.(2x+9)-(-8x+3)-(x+13)=0
Tim x, biet:
a) (-5)-(x+5)=3-(2x-5)
b)2(x-3)-3(x-2)=3(x+1)-5(x-2)
C)4(1-2x)=(-3)-3(2+3x)
Giải ngay nhé, chiều mình đi học rồi.
2.(x-5)-3.(x-4)=-6+15:9-3)
(x+7).(x-9)=0
/2x-5/-7=22
(/2x/-5)-7=22
tìm x,y thuộc z biết:x+y=x.y
1, x^2-3=22
2, 2x^3+5=-11
3, (x+2)^2=81
4, (2x+1)^2=25
5, 5^x+2=625
6 , (2x-3)^2=36
7,(2x-1)^3=-8
8, (x-1)^x+2=(x-1)^x+6 voi x thuoc z
9, x^2+x=0
Tim x biet
A/70-5(x-3)=45
B/5^2x-3 - 2×5^2=5^2×3
tim x thuộc N
a 2+4+6+...+2x=210
b 1+3+5+...+[2x-1]=225
c 1+2+3+...+x=278
d 1+3+5+...+[2x-1]=169