Question

5x+2+x=2x+6+2x
8x-7+x=5x+21
Ayúdenme porfa

Answer 1

5x + 2 + x = 2x + 6 + 2x

5x + x + 2 = 2x + 2x + 6

    6x + 2 =  4x + 6

   6x - 4x = 6 - 2

        2x = 4

          x = 4/2

          x = 2

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8x - 7 + x = 5x + 21

8x + x - 7 = 5x + 21

    9x - 7 = 5x + 21

  9x - 5x = 21 + 7

         4x = 28

           x = 28/4

           x = 7

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eso es todo :D

SALUDOS!!