Question

Сумма x-25 и x+25 равна а) x б) 3x в) 2x г) (x + 25)

Answer 1

Привет

( х - 25 ) + ( х + 25 ) = х - 25 + х + 25 = 2х

Ответ : В) 2х

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Answer 2

To find the sum of x-25 and x+25, you simply need to combine the terms with the same variable (x) and then combine the constant terms (numbers without variables).

(x-25) + (x+25) = x + x - 25 + 25

Now, combine the x terms:

2x - 25 + 25

The -25 and +25 cancel each other out, leaving us with:

2x

So, the correct answer is (в) 2x.