Respuesta :

fnej

Answer:

x = -7

Step-by-step explanation:

7(x + 4) = -21

7x + 28 = -21

7x = -21 - 28

7x = -49

x = -7

Answer:

-7

Step-by-step explanation:

7(x+4)=-21

7/7(x+4)=-21/7

x+4=-3

x+4-4=-3-4

x=-7

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