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If x + y = 19 and y = 17, then what is the value of x?

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answer is B.

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Detailed Solution

Given that:

x + y = 19 ...(i)

y = 17 ...(ii)

Substituting y = 17 in equation (i), we get:

x + 17 = 19

x = 19 - 17

x = 2

Hence, option B is correct.

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