=>2x-7=x+135=>2x-x=135+7=>x=142
=>2x-7=x+135=>2x-x=135+7=>x=142
a) ( 2x + 7 ) + 135 = 0
b) 1/2x + 150%x = 2014
tìm x:
a,x+(x+1)+(x+3)=153
b,(2x-7)-(x+135)=0
(2x-7)-(x+135)=0
Tìm số tự nhiên x,biết:
a) (2x-7) -135=0
b) 122+(37-3x)=0
a) (2x-7)-(x+135)=0
b) (x+3)×(x-5) x thuoc N
Tìm x , biết :
(2x-7)-(x+135)=0
( 2x - 7 ) - ( x + 135 ) = 0
a)(14-x)-12=5
b)(2x+7)+135=0
c)(162+3x)+(x-2)=0
d)720-(3+2x)=1
e)/2x+1/<2
f)2/x=3/15
Bài 3. Tìm số nguyên x, biết:
a) x - 6 = 1. b) 23 - x = 0
c) 2x - 8 = 12 d) 2x - ( -1) = 1
e) (135 + x) - 135 = 0; f) ( -562) - (x- 562) = 0