-(35-x)-(37-x)=33-x
=>-35 +x -37+x=33-x
=>x+x+x=35+37+33
=>x=35

-(35-x)-(65-x)=33

-35 + x - 65 + x = 33

x + x                  = 33 + 65 + 35

2x                      = 133

x                        = 133 : 2

x                        = 66,5

Hok tốt !

\(-\left(35-x\right)-\left(37-x\right)=33-x\)

           \(-35+x-37+x=33-x\)

                                  \(2x-2=33-x\) 

                                  \(2x+x=33+2\)

                                          \(3x=35\)

                                             \(x=\frac{35}{3}\)

35/3 nha bạn

\(-\left(35-x\right)-\left(37-x\right)=33-x\)

\(\Leftrightarrow\)\(-35+x-37+x=33-x\)

\(\Leftrightarrow\)\(2x-72=33-x\)

\(\Leftrightarrow\)\(3x=105\)

\(\Leftrightarrow\)\(x=105\div3\)

\(\Leftrightarrow\)\(x=35\)

\(-(35-x)-(37-x)=33\\\Rightarrow-35+x-37+x=33\\\Rightarrow(-35-37)+(x+x)=33\\\Rightarrow-72+2x=33\\\Rightarrow2x=33+72\\\Rightarrow2x=105\\\Rightarrow x=105:2\\\Rightarrow x=52,5\\---\)

\((-14)+x-7=(-10)\\\Rightarrow x-7=(-10)+14\\\Rightarrow x-7=4\\\Rightarrow x=4+7\\\Rightarrow x=11\)

-(35  - \(x\)) - (37 - \(x\)) = 33

- 35 + \(x\)  - 37 + \(x\)  = 33

  (\(x\) + \(x\)) - (35 + 37) = 33

    2\(x\) - 72  = 33

    2\(x\)          = 33 + 72

    2\(x\)         = 105

      \(x\)        = \(\dfrac{105}{2}\)

(-14) + \(x\) - 7 = (-10)

 -14 + \(x\)  - 7 = -10

 \(x\) - (14 + 7)  = -10

  \(x\) - 21          = -10

  \(x\)                 = -10 + 21

  \(x\)                 = 11

11 x 13 x 15 x 17 + 23 x 25 x 27 x 29 + 31 x 33 x 35 x 37 + 45 x 47 x 49 x 51

=7096860

#Hok tốt!#

c/s 0

a: \(x-43=\left(35-x\right)-48\)

=>\(x-43=35-x-48\)

=>\(x-43=-x-13\)

=>\(x+x=-13+43\)

=>2x=30

=>x=30/2=15

b: \(305-x+14=48+\left(x-23\right)\)

=>\(319-x=48+x-23=25+x\)

=>\(x+25=319-x\)

=>\(x+x=319-25\)

=>\(2x=294\)

=>\(x=\dfrac{294}{2}=147\)

c: \(-\left(-x-6+85\right)=\left(x+51\right)-54\)

=>\(-\left(-x+79\right)=x+51-54\)

=>x-79=x-3

=>-79=-3(vô lý)

=>\(x\in\varnothing\)

d: \(-\left(35-x\right)-\left(37-x\right)=33-x\)

=>\(-35+x-37+x=33-x\)

=>2x-72=-x+33

=>\(2x+x=33+72\)

=>3x=105

=>\(x=\dfrac{105}{3}=35\)