Respuesta :

jomariflores400l

Answer:

The answer is B. 7

Step-by-step explanation:

3 + x = 10

3 + 7 = 10

lena3056
B.

x=7.

Step by step:

x+3=10.

x=7.

(I subtracted 3 on both sides)

Hope this helped!! :)

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