=> 15-2x-1 = 17-3x+5
=> 14-2x = 22-3x
=> 14 = 22-3x+2x = 22-x
=> x = 22 - 14 = 8
Vậy x = 8
Tk mk nha
=> 15-2x-1 = 17-3x+5
=> 14-2x = 22-3x
=> 14 = 22-3x+2x = 22-x
=> x = 22 - 14 = 8
Vậy x = 8
Tk mk nha
Tim x ,biet :
(x-78):70=0
(x-2)x (2x-10)=0
2x(x-5)=0
2x(x-6) =0
(x-15)x15=0
giup mik voi tim x biet
1, 5-(3x+6)>-2x+1
2, -7.(x+2)-3x<6-11x
3, (x+1).(x+2)-x.(x+3)<4-x
4, 6-2x>17+(4-x)
tim x thuoc Z biet
a) 17-(2x-11) = 12-3x
b) /2x-3/ = 7
c) (2x-1)^4 = 16
d) (17-2x )^3=-125
tim x,y thuoc n de:
(x+22) chia het cho (x+1)
(2x+23) thuoc B *(x-1)
(3x+1) chia het cho (2x-1)
(x-2)*(2y+1)=17
xy+x+2y=5
bai 1)tim x biet
a )24-(36+5)=x
b)14-21=(13-x)-(15+8)
bai 2) tim x biet
a)17-x=-25+(-16+9)
b)3x-21=-19-(-2x)
2x-35=15
3x=17=2
/x-1/=0
tim so nguyen
tim x
a) 3x-15=25-5x
b) 2x-17=-(3x-18)
Tim x:
a) (3x-1)(-1/2x+5)=0
b) 2/3x+1/2x=5/2
a, 2x . 4 = 128
b, x15 = x 1
c, (2x + 1)3 = 125
d, (x – 5)4 = (x - 5)6
e, x10 = x
f, (2x -15)5 = (2x -15)3