2x + 2x = 4x
3x +6x -7x =2x
5x +45x =50x
t i c k cho mik
4x ( (2+2)*x)
1x ( (3+6-7)*x)
50x ( (5+45)*x)
2x+2x=x(2+2)=4x
3x+6x-7x=x(3+6-7)=2x
5x+45x=x(45+5)=50x
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2x + 2x = 4x
3x +6x -7x =2x
5x +45x =50x
t i c k cho mik
4x ( (2+2)*x)
1x ( (3+6-7)*x)
50x ( (5+45)*x)
2x+2x=x(2+2)=4x
3x+6x-7x=x(3+6-7)=2x
5x+45x=x(45+5)=50x
x+2x+3x+3x+4x+5x+6x+7x+8x+9x+10x=-165.tim x
x.1x.2x.3x.4x.5x.6x.7x.8x.9x.10x.11x=5500
x=?
tim x
-2x(6x-2)+3x(4x-7)=8
(7x-2)(2x+3)-(3x-5)(4x+6)=2x2-5
+(-2x+3)-6x(3x-4)=-22x2+7x
tìm x biết /x+1/ + 2x^2012 - 3x^2012 -4x^2012+5x^2012 + 6x^2012 -7x^2012 -8x^2012 +...........+2013x^2012=2012
a) 3 - 2 ( x - 3 ) = 3x + ( - 5 )
b) - 6 - ( 7 + x ) = - 2 - 5 - 2x
c) 8x - 7 = - 13 + 7x
d) - 6 ( x - 2 ) + 5x = 13 - 2x
e) - 5 - 6x = x - 5x + 3
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 !!!!!!!
1)2x-8x2=0
2)x-x2=0
3)7x=5x2
4)3x2=x
5) (2x-5)(x+9)+8-6x=0
6) (x+3)(5x-15)+2x-6=0
a) 4(x+3)-(2x-12)=x-(-11+4)
b) -(4x-13)+(5x-4)= -3-(-15+7)
c) (5x-3)-(-2x+4)=6x-12
d) (15x+20)-(9x-3)=5x-(-12)
e) (7x+14)+(3x-8)= -(-9x+3)
giúp mình nha.................
A) 7/3x+5 = 9/6x-7
B) 3x+6/4 = 5-7x/6
C) 12/5x+6 = 17/3x+12
D) 6(3x+7) = 12(2x-4)
E) 13(2x-9)= 8(3x-13)
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