Question

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Answer 1

Verified answer

Respuesta:

a)

 -4+10 = 3x

        6 = 3x

        2 = x

b)

5x-10 = -40

     5x = -40+10

     5x = -30

       x = -6

c)

3.(-5-2x) = -21

    -15-6x = -21

         -6x = -6

            6 = 6x

             1 = x

d)

-9x-3x = -24

   -12x = - 24

     24 = 12x

       2 = x