17-(3+x)+15-|-3|=2+2x
17-3-x+15-3=2+2x
26-x=2+2x
-x-2x=2-26
-3x=-24
x=8
Ta có: \(17-\left(3+x\right)+15-\left|-3\right|=2+2x\)
\(\Leftrightarrow17-3-x+15-3-2-2x=0\)
\(\Leftrightarrow-3x+24=0\)
\(\Leftrightarrow-3x=-24\)
hay x=8
17-(3+x)+15-|-3|=2+2x
17-3-x+15-3=2+2x
26-x=2+2x
-x-2x=2-26
-3x=-24
x=8
Ta có: \(17-\left(3+x\right)+15-\left|-3\right|=2+2x\)
\(\Leftrightarrow17-3-x+15-3-2-2x=0\)
\(\Leftrightarrow-3x+24=0\)
\(\Leftrightarrow-3x=-24\)
hay x=8
tìm x
A. x^2 - 2x - 15 - x . x . ( x + 7 ) = 75
B. x . ( x- 3 ) + 3 . ( x - 3 ) - x^2 + 3x = 16
C. 2x^2 - 3x + x . ( 4 - 2x ) - 2x = 5
: Tìm x, biết:
a) 3x( 4x- 1) - 2x(6x- 3 )=30 b) 2x(3-2x) + 2x(2x-1)=15
c) (5x-2)(4x-1) + (10x +3)(2x - 1)=1 d) (x+2) (x+2)- (x -3)(x+1) = 9
e) (4x+1)(6x-3) = 7 + (3x – 2)(8x + 9) g) (10x+2)(4x- 1)- (8x -3)(5x+2) =14
tìm x,y biết : 3/2x = 2/3y và 2x3-1=15
Tìm x biết:
A. 2.x -5/4=20/15
B. 1,5 : 0,3 = x :(-15)
c. ( x +1/3)^3=-1/8
d. (-4x) . ( x-5) . -2x(8-2x) =-3
Tìm x biết:
a) 11/15 - (7/9 + x) × 3/8 = 61/90 + x/3
b) (4x + 1)(-2x + 1/3) = 0
c) 5x(2x - 1/2) + 2(2x - 1/2) = 0
Tìm x,y thuộc N biết
1)xy+x-4y=12
2) (2x+3). (y-2)=15
3)xy+2x+y=12
4)xy-x-3y=4
Giúp mình vs ạ!!!
Tìm x biet x thuộc so tự nhien :
a) 2x-15=17
b) (7.x-11)=2^5.5^2+200
c) (2x-15)5=(2x-15)3
Tìm x biết : a) 2x+3/15 = 7/5. b) x-2/9 = 8/3. c) -8/x = -x/18 d) 2x+3/6 = x-2/5. e) x+1/22 = 6/x f) 2x-1/2 = 5/x g) 2x-1/21 = 3/2x+1 h) 10x+5/6 = 5/x+1
Tìm x bt : 2x-1/3=15/2