5x - ( - 3 + 4) = 12 - x
5x - 1 = 12 -x
5x +x = 12 + 1
6x = 13
x = 13/6
5x - ( - 3 + 4) = 12 - x
5x - 1 = 12 -x
5x +x = 12 + 1
6x = 13
x = 13/6
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.................
{x + 2 } - 2=0 {x + 3}+1 =7
{x + 3 } + 4 = 12 {5x + 4} - 1= 13
{ 4x - 8 } + 3 =12 3 + {x - 5 } = 14
Tìm STN x, biết
1) (x + 2) - 2 = 0 2) (x + 3) + 1 = 7
3) (3x - 4) + 4 = 12 4) (5x + 4) - 1 = 13
5) (4x - 8) - 3 = 5 6) 3 + (x - 5) = 7
7) 8 - (2x - 4) = 2 8) 7 + (5x + 2) = 14
9) 5 - (3x - 11) = 1 10) 16 - (8x + 2) = 6
Tìm x
a) -x/27 -1 = 2/3
b) x - 4 = -14/35 : 20/-21
c) x + 2/3 = -1/12 . -4/5
d) 1/5 - 3/5x = -15/14 :20/-21
e) -3/7x = 3/5 . 28/9
f)1/2x + 3/5x = -2/3
Tim x
10-2.x=25-3x
4.x-(3+5x)=14
|5x-12| < hoặc = 13
Tìm số tự nhiên x biết:
(x+2)-2=0
(x+3)+1=7
(3x-4)+4=12
(5x+4)-1=13
(4x-8)-3=5
8-(2x-4)=2
7+(5x+2)=14
5-(3x-11)=1
Giúp e vs ạ(Vui lòng trình bày ạ)
4-(5x+12)=7+(x+3)
tim x thuoc z , biet : 2x-3/3 + -3x +4/4+5x-12/5 = 241/60