3x+17=12

=>3x=12-17

=>3x=-5

=>x=-5:3

=>x=-1,66

/x-1/=0

=>x-1=0

=>x   =0+1

=>x  =1

-13./x/=-26

=>/x/=-26:(-13)

=>/x/=2

=>x=-2 hoặc x=2

3x+17=12

=>3x=12-17

=>3x=-5

=>x=-5:3

=> x=-5/3

vậy x=-5/3

|x-1|=0

=>x-1=0

=>x=0+1

=>x=1

-13.|x|=-26

=>||x|=-26:-13=2

=> x thuộc tập hợp các số -2 hoặc 2

vậy x=2;-2

K nha

1,-16+23+x=-16

=>23+x=-16-16

=>23+x=-32

=>x=-32-23

=>x=-55

2,2x-35=15

=>2x=15+35

=>2x=50

=>x=25

3,3x+17=12

=>3x=12-17

=>3x=-5

=>ko có x thỏa mãn

4,|x-1|=0

=>x-1=0

=>x=1

5,-13.|x|=-26

=>|x|=-26:-13

=>|x|=2

=>x=2 hoặc -2

1. -16+23+x=-16

23+x=(-16)-(-16)

23+x=(-16)+16

23+x=0

x=0-23

x=-23

2. 2x-35=15

2x=15+35

2x=50

x=50:2

x=25

3. 3x+17=12

3x=12-17

3x=-5

x=(-5):3

x=-5/3

4. /x-1/=0

/x/=0+1

/x/=1

=>x=1 hoặc x=-1

5. -13./x/=-26

/x/=(-26):(-13)

/x/=2

=>x=2 hoặc x=-2

a)-16+23+x=-16

7+x=-16

x=-16-7

x=-23

b)2.x-35=15

2.x=15+35

2.x=50

x=50:2

x=25

c)3.x+17=12

3.x=12-17

3.x=-5

x=-5:3

x=-1,(6)

d)Ix-1I=0

IxI=0+1

IxI=1

=>x=1 hoặc x=-1

e)-13.IxI=-26

IxI=-26:(-13)

IxI=2

=>x=2 hoặc x=-2

!!!!!!!!!

chọn đúng ik

a)x=-23

b)x=25

c)x=-5/3

d)x=1 

e)x=2 hoac x=-2

tk minh nha

a) -16 + 23 + x = - 16

23 + x = -16 - (-16)

23 + x = 0

x = 0 - 23

x = -23

Vậy x = -23

b) 2x - 35 = 15

2x = 15 + 35

2x = 50

x = 50 : 2

x = 25

Vậy x = 25

e) -13 . |x| = - 26

|x| = -26 : (-13)

|x| = 2

Vì |-2| = |2| = 2

=> x \(\in\) { 2 ; -2 }

Vậy x \(\in\) {2 ; -2}

Xin lỗi nha ! Câu c và câu d của cậu sai đề rùi nên mình ko làm được!

____________________ SORRY___________________

1.

-16+23+x=-16

<=>7+x=-16

<=>x=-16-7

<=>x=-23

Vậy...

2.

2x – 35 = 15

<=>2x=50

<=>x=25

Vậy...

3.

3x + 17 = 12

<=>3x=-5

<=>x=-5/3

Vậy...

4.

│x - 1│= 0

<=>x-1=0

<=>x=1

Vậy..

5.

-13 .│x│ = -26

<=>IxI=2

<=>x=-2 và x=2

Vậy..

1) -16 + 23 + x = - 16

ó x = -23
2) 2x – 35 = 15

ó 2x = 50

ó x = 25
3) 3x + 17 = 12

ó 3x = -5

ó x = -5/3
4) │x - 1│= 0

=> x – 1 = 0 ó x = 1
5) -13 .│x│ = -26

ó |x| = 2

ó x = 2 hoặc x = -2

1     -16 + 23 + x = -16

       7 + x = -16     

               x = -16 - 7

                  x = -23

1)-16+23+x=-16

          7+x= -16

              x=-16-7

              x= -23

2)2x-35=15

        2x=15+35

       2x=50

        x=50:2

        x=25

3)3x+17=12

        3x=12-17

        3x= -5

          x=-5:3

 Vì -5 ko chia hết cho 3 nên=> ko có x

4)/x-1/=0

Vì chỉ có /0/ là=0 nên x-1=0

 x-1=0

    x=0+1

    x=1

5)-13./x/= -26

        /x/= -26:(-13)

        /x/=2

   Vì /2/ và /-2/ đều = 2 nên =>x thuộc{2;-2}

a) \(\dfrac{2}{3}x-\dfrac{1}{2}=\dfrac{1}{10}\)

\(\dfrac{2}{3}x=\dfrac{1}{10}+\dfrac{1}{2}=\dfrac{3}{5}\)

\(x=\dfrac{3}{5}:\dfrac{2}{3}=\dfrac{9}{10}\)

b) \(\dfrac{39}{7}:x=13\)

\(x=\dfrac{\dfrac{39}{7}}{13}=\dfrac{3}{7}\)

c) \(\left(\dfrac{14}{5}x-50\right):\dfrac{2}{3}=51\)

\(\dfrac{14}{5}x-50=51\cdot\dfrac{2}{3}=34\)

\(\dfrac{14}{5}x=34+50=84\)

\(x=\dfrac{84}{\dfrac{14}{5}}=30\)

d) \(\left(x+\dfrac{1}{2}\right)\left(\dfrac{2}{3}-2x\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}x+\dfrac{1}{2}=0\\\dfrac{2}{3}-2x=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{1}{2}\\x=\dfrac{1}{3}\end{matrix}\right.\)

e) \(\dfrac{2}{3}x-\dfrac{1}{2}x=\dfrac{5}{12}\)

\(\dfrac{1}{6}x=\dfrac{5}{12}\)

\(x=\dfrac{5}{12}:\dfrac{1}{6}=\dfrac{5}{2}\)

g) \(\left(x\cdot\dfrac{44}{7}+\dfrac{3}{7}\right)\dfrac{11}{5}-\dfrac{3}{7}=-2\)

\(\left(x\cdot\dfrac{44}{7}+\dfrac{3}{7}\right)\cdot\dfrac{11}{5}=-2+\dfrac{3}{7}=-\dfrac{11}{7}\)

\(x\cdot\dfrac{44}{7}+\dfrac{3}{7}=-\dfrac{11}{7}:\dfrac{11}{5}=-\dfrac{5}{7}\)

\(\dfrac{44}{7}x=-\dfrac{5}{7}-\dfrac{3}{7}=-\dfrac{8}{7}\)

\(x=-\dfrac{8}{7}:\dfrac{44}{7}=-\dfrac{2}{11}\)

h) \(\dfrac{13}{4}x+\left(-\dfrac{7}{6}\right)x-\dfrac{5}{3}=\dfrac{5}{12}\)

\(\dfrac{25}{12}x-\dfrac{5}{3}=\dfrac{5}{12}\)

\(\dfrac{25}{12}x=\dfrac{5}{12}+\dfrac{5}{3}=\dfrac{25}{12}\)

\(x=1\)

Mỏi tay woa bn làm nốt nha!!