Các câu hỏi tương tự
tim x:(2x-1-5x):(3-4x-7)=-2(3-2x-1)
tim x
a, 5x-9=2x+15
b, 2 .(x-3)-4(x+4)=3.(-7) + 5
Tìm x:
a) 2/5 = 3/4 : x = -1/2
b) 5/7 - 2/3 . x = 4/5
c) 1/2x + 3/5x = -2/3
d) 4/7x - x = -9/14
Bài 1 : Tìm x,yez
1, 3 - | 2x + 1 | = ( - 5 )
2, 12 + | 3 - x | = 9
3 , | x + 9 | = 12 + ( - 9 ) + 2
4 , 5x - 16 = 40 + x
5 , 5x - 7 = - 21 - 2x
6, ( 2x - 1 ) ( y - 2 ) = 12
nhờ cấc a/c giúp e vs ạk e đang cần gấp
6, ( 2x + 1 ) ( y - 2 ) = 12
1)5x+2(x+1/2)=7
2)8x-3(x+2)=9
3)5(x-2)+3(x-1)=19
4)7(x-3)-2x-5=11
Tim X
3) -12 + (2x – 9) + x= 0
4) 11 + (15 - x) = 1
5) 4 - (27 - 3) = x - (13 - 4)
6) 8 - (x - 10) = 23 - (- 4 +12)
7) 105 – 5(10 – 5x) = -20
8) (x -1)(8-2x)(3x+123) = 0
9) (x2 - 25)(x+ 10) = 0
10) x(x2+5) =
Tìm x, biết:
a) 3.| 9 - 2x| - 17= 16
b) 3 - 4. |5 - 6x| =7
c) |9 - 7x|= 5x - 3
d) 8x - |4x + 1| = x + 2
e)|2x - 3| - ( 2x - 3) = 0
g)| 4- x| + ( 4 - x ) =0
1 Tìm x,biết
a) x-14=3x+18
b) (x+7).(x-9)=0
c) /2x-5/-7=22
d)(/2x/-5)-7=22
e)/x+3/+/x+9/+/x+5/=4x
2)Tìm x;y thuộc z biết
a)(2x-1).(y+4)
b)(2x-1).(y-4)
c)(5x+1).(y-1)=4
d)5xy-5x+y=5
a,210-5(x-11)=200
b,(2x+1):7=2^2+3^2
c,450:[41-(2x-5]=3^2.5
d,(5x-9).7+3=80