Question

a)x -10=-30
b)50 +10x=2x
c)4x -10=14
d)5x +21=10x -19
e)11x +17=10x +3
f)3x -4=26
ME AJUDEM PFVR ​

Answer 1

Resposta:

a)x -10=-30

  x = -30 +10

  x = -20

b)50 +10x=2x

  10x -2x = 50

       8x    = 50

         x     = 50/8    é o mesmo que 50 : 8

         x     = 6,15

c)4x -10=14

  4x = 14 + 10

  4x = 24

    x = 24/4

    x = 6

d)5x +21=10x -19

   5x -10x = -19 -21

        -5x   = -40

           x    = -40/-5

           x    = +8

e)11x +17=10x +3

  11x -10x = 3 - 17

         x    = -14

f)3x -4=26

 3x = 26 +4

 3x = 30

   x = 30/3

   x = 10

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