Question

a) 8x + 7 = 5x + 26
b) 5x + 6x - 16 = 3x + 6x - 4
c) 4 x - 10 =2 x + 2
d)x - 1023=8
e) 6x - 25 + 4x = 5​

Answer 1

Resposta:

a) S[19/3]

b) S[ 6]

c) S[ 6]

d) S[ 1031]

e) S[3]

Explicação passo-a-passo:

a) 8x + 7 = 5x + 26

   8x - 5x = 26 - 7

        3x = 19

         x =  19/3

S[19/3]

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b) 5x + 6x - 16 = 3x + 6x - 4

5x + 6x - 3x - 6x = - 4  + 16

  11x - 9x = 12

         2x = 12

            x = 12/2

              x = 6

S[ 6]

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c) 4x - 10 =2x + 2

  4x - 2x = 2 + 10

         2x =  12

            x = 12/2

            x = 6

S[6]

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d)x - 1023= 8

x =  8 + 1023

  x = 1031

S[ 1031]

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e) 6x - 25 + 4x = 5​

6x + 4x = 5 + 25

     10x  = 30

         x = 30/10

          x = 3

S[3]