-12+3(-x+7)=-18
-12-3x+21=-18
9-3x=-18
3x=27
x=9
- 12 + 3 ( - x + 7 ) = - 18
- 3x + 3 . 7 = -18 + 12
- 3x + 21 = - 6
- 3 x = - 6 - 21
- 3x = - 27
x = - 27 : ( - 3 )
x = 9
-12 + 3( -x + 7 ) = -18
-12 - 3x + 21 = -18
9 - 3x = -18
3x = 27
x = 9
-12+3(-x+7)=-18
-12-3x+21=-18
9-3x=-18
3x=27
x=9
- 12 + 3 ( - x + 7 ) = - 18
- 3x + 3 . 7 = -18 + 12
- 3x + 21 = - 6
- 3 x = - 6 - 21
- 3x = - 27
x = - 27 : ( - 3 )
x = 9
-12 + 3( -x + 7 ) = -18
-12 - 3x + 21 = -18
9 - 3x = -18
3x = 27
x = 9
3 tìm x
a)4/9.x=1/9
b)x:-1/12=7/12
c)-5/14:x=-3/10
d)7/18.x-2/3=5/18
e)4/9-7/8.x=-2/3
f)1/6+-5/7:x=-7/18
Bài 3 : tìm x
a) 4/9 . x = 1/9
b) x : -1/12 = 7/12
c) -5/4 : x = -3/10
d) 7/18 . x - 2/3 = 5/18
e) 4/9 - 7/8 . x = -2/3
f) 1/6 + -5/7 : x -7/18
Cần gấp
Tìm x: -12 +3(-x +7)= -18
tìm x:
\(\dfrac{x-}{7-}\dfrac{\dfrac{x}{12}+}{\dfrac{7}{12}}\dfrac{\dfrac{x}{18}}{\dfrac{7}{18}}=\dfrac{-4}{7}\)
Tìm số nguyên x , biết
10 - 2 ( 4 - 3x) = -4
c) -12 + 3(-x + 7 ) = -18
-45 : 5 . (-3 - 2x) = 3
3x - 28 = x +36
(-12)2 . x = 56 + 10 . 13x
tìm x,biết
5.(x+7)-3.(2-x)
12(x-3)=5(x-1)+4
(-6).(x-7)+2(x+10)=x-18
7.(2x-1)-12(x-5)=3
|2x-1|=17
|8-3x|=14
tìm x,biết
5(x+7)-3(2-x)
12(x-3)=5(x-1)+4
(-6).(x-7)+2(x+10)=x-18
7(2x-1)-12(x-5)=3
|2x-1|=17
|8-3x|=14
Tìm x :
1) -12 + 3 . ( -x +7 ) = -18
2) x . ( x + 7 ) = 0
3) ( -x + 5 ) . ( 3 - x ) = 0
4) ( x + 12 ) . ( x - 3 ) = 0
5) x . ( 2 + x ) . ( 7 - x ) = 0
6) ( x - 1 ) . ( x + 2 ) . ( -x - 3 ) = 0
Tìm các số nguyên x,y biết : a,-1/3<x/36<y/18<-1/4
b, -7/12<x-1/4<2/3