Ta co: /2x-6/+5=13 suy ra /2x-6/=13-5=8 suy ra 2x-6=8 hoac 2x-6=-8
suy ra 2x=14 hoac 2x=2
hay x=7 hoac x=1
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1,Tìm x
5^x-5^x+2=650
2x-3/11+2x-4/12+2x-5/13=2x-6/14+2x-7/15+2x-8/6
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
a)5-(13-3x)=109-(32+109)
b)/3x-6/+(x-2^2)=0
c)/7-2x/=-13-5.(-8)
2x-13= 5 mu 6:5 mu 4
(2x-6)^5=13^0
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)
Giải rõ giùm em với
a)-3/5.5/7+3/-5.3/7+3/5.-6/7
b)3/13:-11/-6+-3/13:11/-5-2/13
c)1/2.(x+2)+3/8=7/16
d)1/3x+2/5(x+1)=0
-1/3+5/2x=1/6:(-2/9)
Tìm x biết:
a,x-5/7=1/9
b,2x/5=6/2x+1
c,11/8+13/6=85/x
d,2x-2/11=1.1/5
e,x/15=3/5+-2/3
f,x/182=-6/14.35/91
tìm x biết 13/x-1+5/2x-2-6/3x-3