Question

Resolva as equações do 1°Grau,sendo u=Q:

A)50+(3x-4)=2(3x-4+26)


B)2x-3=33-x


c)7-2x=4+x


D)5x-6=3-4x

e)9-3x=-5+4x

f)7x+10=6x-5

g)20x-4=5x

h)-3x+8=5x+16

i)3(x-1)-2x=5(x-3
5. 6
j)1-2x=x=x-x
3 2
k)x+x=2
2. 4​

Answer 1

Resposta:

Explicação passo a passo:

A)50+(3x-4)=2(3x-4+26)

  50 + 12 = 2(3x + 22)

  62 = 6x + 44

  - 6x = 44 - 62

  - 6x = - 18 . (-1)

     6x = 18

      x = 18/6

      x = 3

B)2x-3=33-x

   2x + x = 33 + 3

   3x = 36

   x = 36/3

   x = 12

c)7-2x=4+x

   - 2x - x = 4 - 7

     - 3x = - 3 . (-1)

     3x = 3

     x = 3/3

     x = 1

D)5x-6=3-4x

   5x + 4x = 3 + 6

    9x = 9

     x = 9/9

     x = 1

e)9-3x=-5+4x

   - 3x - 4x = 5 - 9

   - 12x = - 4 . (-1)

   12x = 4

    x = 4/12 : 4

    x = 1/3

f)7x+10=6x-5

 7x - 6x = - 5 - 10

  x = - 15

g)20x-4=5x

   20x - 5x = 4

     15x = 4

       x = 4/15

h)-3x+8=5x+16

   - 3x - 5x = 16 - 8

       - 8x = 8 . (-1)

       8x = - 8

       x = - 8/8

       x = - 1