Respuesta :

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Answer:

x = 1

Step-by-step explanation:

We will represent the unknown number as x

10 - x = 8 + x

Add x to both sides

10 - x + x = 8 + x + x

10 =  8 + 2x

Subtract 8 from both sides

10 - 8 = 2x

2 = 2x

Divide both sides by 2

1 = x

x = 1

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