Respuesta :

starryblackhole

D 15

-1/2(x+5)=-10

-1(x+5)=-10×2

-x-5=-20

-x=-20+5

-x=-15

x=15

Answer:

x=15

Step-by-step explanation:

-1/2(x+5)=-10

x+5=20 multiply by -2

x=15 Minus 5 from each side

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