Sao ban chui ban ay?

3-(17-x)=289-(36+289)

3-(17-x)=-36

   17-x=-36+3

    17-x=39

         x=17-39

         x=-22

Nho cho mk nhe!!!!!!

3-(17-x)=289-(36+289)

3-(17-x)=-36

    17-x=39

         x=17-39

         x=-22

Vay x=-22

Nho cho mk 1 h nha!!!

\(\text{3 - ( 17 - x ) = 289 - ( 36 + 289 )} \)

\(\text{=> 3 - 17 + x = 289 - 289 - 36}\)

\(\text{=> -14 + x = 0 - 36}\)

\(\text{=> x - 14 = -36}\)

\(\text{=> x = -36 + 14}\)

\(\text{=> x = -22}\)

\(\text{Vậy : x = -22}\)

a, 3^x+3^x*3⁴ = 738

<=> 3^x(1+3⁴) =738

<=> 3^x *82 = 738

<=> 3^x         =9 =3²

<=> x=2

câu b,c tương tự

a.

\(3-\left(17-x\right)=289-\left(36+289\right)\)

\(3-17+x=289-36-289\)

\(x=\left(289-289\right)+\left(-36-3+17\right)\)

\(x=-22\)

b.

\(x-73=\left(-35\right)+\left|-55\right|\)

\(x-73=-35+55\)

\(x=-35+55+73\)

\(x=93\)

c.

\(\left|x\right|-3=2\)

\(\left|x\right|=3+2\)

\(\left|x\right|=5\)

\(x=\pm5\)

Vậy x = 5 hoặc x = -5

d.

\(\left|x+1\right|=5\)

\(x+1=\pm5\)

TH1:

\(x+1=5\)

\(x=5-1\)

\(x=4\)

TH2:

\(x+1=-5\)

\(x=-5-1\)

\(x=-6\)

Vậy x = 4 hoặc x = -6

a, \(3-17+x=289-36-289\)

\(\Rightarrow x-14=-36\)

\(\Rightarrow x=-22\)

\(b,x-73=\left(-35\right)+\left|-55\right|\)

\(\Rightarrow x-73=\left(-35\right)+55\)

\(\Rightarrow x-73=20\)

\(\Rightarrow x=93\)

\(c,\left|x\right|-3=2\)

\(\Rightarrow\left|x\right|=5\)

\(\Rightarrow x=\pm5\)

\(d,\left|x+1\right|=5\)

\(\Rightarrow\) \(\left[\begin{array}{nghiempt}x+1=5\\x+1=-5\end{array}\right.\) \(\Rightarrow\) \(\left[\begin{array}{nghiempt}x=4\\x=-6\end{array}\right.\)

3-(17-x)=289-(36+289)

<=> 3-17+x=289-36-289

<=> -14+x=-36 => x=-22

25-(x+5)=-45-(15-45)

<=> 25-x-5=-45-15+45

<=> 20-x=-15=> x=35

34-(21-x)=(3747-30)-3747

<=> 334-21+x=3747-30-3747

<=> 313+x=-30=> x=-343

3 - ( 17 - x ) = 289 - ( 36 + 289 )

3 - 17 + x = 289 - 36 - 289

- 14 + x = - 36

          x = ( - 36 ) - ( - 14 )

          x= - 22

25 - ( x + 5 ) = - 45 - ( 15 - 45)

25 - x - 5 = - 45 - 15 + 45

20 - x = - 15

      x = 20 - ( - 15 )

      x = 35

34 - ( 21 - x ) = ( 3747 - 30 ) - 3747

34 - 21 + x = 3747 - 30 - 3747

13 + x = - 30

       x = ( - 30 ) - 13

       x = - 46

Xin lỗi bn mk nhầm

34-(21-x)=(3747-30)-3747

<=> 34-21+x=3747-30-3747

<=> 13+x=-30

<=> x=-43

a)-22: b)35: c)84

a) x=22

b)x=-795

c)x=84

a) x - 22

b) = - 795

c) =84

Cái này là toán lớp 1 sao?