=> -6x - 2 + 12x + 6 - 30x + 15 = 0
=> -24x + 19 = 0
=> -24x = -19
=> x = 19/24
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Các câu hỏi tương tự
Bài 1: Tìm x : A) 25%x+4x=35-0,75x
B) 3/4.(x-2) - 1/2.(6-2x)=1/6x + 5
C) -1/2.(3x+5) - 2/3.(9-6x)= 3/5.(x-10) - 3
D) (1/4x - 1,5) + (5/6x-3) - (5/8x-0,5)= -4,5
q. 3 và 1/3+5/6x=3 và 1/2
s. 1/2-2/3x=7/12
t. 3/4x+1/5=1/6
u. 3/8-1/6x=1/4
tim x
-2x(6x-2)+3x(4x-7)=8
(7x-2)(2x+3)-(3x-5)(4x+6)=2x2-5
+(-2x+3)-6x(3x-4)=-22x2+7x
a, 3 - (7x - 6 ) - ( -4x + 2 ) = - ( -4 - 3x)
b, 4x + ( -8x + 3 ) = - (-7x +6 ) - 5 x
c, 6 - ( -4 -3x ) - ( 2 - 5x ) = 7 - ( 6x - 1 )
Tìm x biết :
a)(3x-3)+(x-2)=(2x-2)-(x-1).
b)(4x-3)+(3x+5)=3x-2.
c)(6x-8)-5(x+2)=2x-12.
d)(9x-2)-4(2x+5)=-12.
bài 1
a) 26+5x=3x-56
b)13/4x-7/6x=-5/12+5/3
c)x/ (-5/14)+7/2=-1 và 2/3
Rút gọn biểu thức
A= -(3x+7)+(5x-2)+(2x-10)
B= (6x+8)-(4x-5)-3x
C= 2.(5x+3)-(2x-1)+12
D=(x+7)-3.(x+1)+2x-5
tìm x:
1) 25x + 3 ( 4- 6x ) = 50
2) 4 ( 2x + 3 ) + 2 ( 3x + 1) = 120
3) 2 ( 3x + 2 ) + 3 ( 4x + 1 ) = 200
Giúp mình v
Bài10872917292872917 tìm x bt
5x-16=40+x
4x-10=15-x
-12+x=5x-2
7x-4=20+3x
5x-7=20+3x
x+15=7+6x
17-x=7-6x
3x+(-21)=12-8x
125:(3x-13)=25
541+(218-z)=735
3(2x+1)-19=14
175-5(x+3)=85
4x-40=|4|+12
x+15=20-4x
8x+|-3|=-4x+39
6(x-2)+(-2)=20-4x