Respuesta :

a.

3x = 30

x = 30/3

x = 10

b.

12x = 12

x = 12/12

x = 1

c.

1 = x-3

x = 1+3

x = 4

d.

-24 = 4x

x = -24/4

x = -6

HOPE THIS WILL HELP YOU

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