Trả lời:
a, x . ( 2013 + 2014 + 2015 ) = 0
=> x = 0 : ( 2013 + 2014 + 2015 )
=> x = 0
Vậy x = 0
b, x . 125 = 10000
=> x = 10000 : 125
=> x = 80
Vậy x = 80
c, 697 : [ ( 15 . x + 364 ) : x ] = 17
=> ( 15 . x + 364 ) : x = 697 : 17
=> ( 15 . x + 364 ) : x = 41
=> 15 . x + 364 = 41 . x
=> 41 . x - 15 . x = 364
=> ( 41 - 15 ) . x = 364
=> 26 . x = 364
=> x = 364 : 26
=> x = 14
Vậy x = 14
Tìm x , biết:
a) x – 2014 = 2013 b) x : 18 = 25; c) (1 + 3 + 5 + ... + 101) . x = 0
d) x . 125 = 10000 e) 697 : [(15.x + 364): x] = 17
Tìm x ,biết:
a)x - 2014 = 2013 d)x . ( 2013 + 2014 + 2015) = 0
b)x : 18 = 25 e)x . 125 = 1000
c)(1 + 3 + 5 +....+101) . x = 0 f)697 : [(15 . x + 364 ) : x] = 17
Tìm x, biêt :697 ÷ [(15× x +364 )÷x]= 17
Tìm x , biết:
a) x – 2014 = 2013 ; d) x . ( 2013 + 2014 + 2015) = 0
b) x : 18 = 25 ; e) x . 125 = 10000
c) (1 + 3 + 5 + ... + 101) . x = 0 ; f) 697 : [(15.x + 364): x] = 17
so sánh A và B biết:A= 2013 x 2014-1/2013 x 2014 ,B=2014x2015 -1 / 2014 x 2015
Tìm x: 697: [(15. x+ 364): x]= 17
tìm x
\(697:\frac{15.x+364}{X}=17\)
Tìm x, biết:
a) (x-17).(x+15)=0
b) (6-x).(x-35)=0
697 : 15. x + 364/x =17
