Respuesta :

adriantms

Answer:

S=-7

Step-by-step explanation:

-s - 7 = -1 • (s + 7)

2.1 Solve : -s-7 = 0

Add 7 to both sides of the equation :

-s = 7

Multiply both sides of the equation by (-1) : s = -7
s= -7 is how you’d write that

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