a) 135 + x -135 = 0 => (135 - 135) + x = 0 => x = 0.

b) -562 - x + 562 = 0 => (-562 + 562) - x = 0 => - x = 0 => x = 0.

c) 61 + x - 23 = 91=> (61 - 23) + x = 91=>38 + x = 91=> x = 53.

d) 11 + 53 - x = 97 => 64 - x = 97 => x = 64 - 97 => x = - 33

(2x-7)-135=0

2x-7=0+135

2x-7=135

2x=135+7

2x=142

   x=142:2

   x=71

vậy x=71

b)122+(37-3x)=0

              37-3x=0-122

               37-3x=-122

                      3x=37-(-122)

                       3x=159

                          x=159:3

                          x=53

 vậy x=53 

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2 x = 0 + 135

2 x = 135

x = 67,5

a)33x + 135 = 26 * 9

33x + 135 = 234

           33x = 234 - 135

           33x = 99

               x = 99 : 33

               x = 3

Vậy x = 3

a) \(33x+135=26.9\)

\(33x+135=234\)

\(33x=234-135\)

\(33x=99\)

\(x=99:33\)

\(x=3\)

b) \(108.\left(x-43\right)=0\)

\(x-43=0:108\)

\(x-43=0\)

\(x=0+43\)

\(x=43\)

b)108 * ( x - 43 ) = 0

               x - 43 = 0 : 108

               x - 43 = 0

                      x = 0 + 43

                      x = 43

Vậy x = 43

3^x+27y=135

3^x+3³y=135=3³+3³*4

=>x=3;y=4

3^x+27y=135

3^x+3³y=135=3³+3³*4

=>x=3;y=4

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x=142

a) x = 200.

b) x = 70.

c) x = 0.

d) x = 0.