Question

6. When 9 is added to twice a number, the result is
number. Find the number.​

Answer 1

Let the no. be x

twice the no. = 2x

when 9 added to twice the no. it becomes (x +9)

AtQ

when 9 is added to twice the no. the result = no. itself

So

( 2x+9) = x

9 = x- 2 x

9= - x

-9 =x

or

x = -9

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