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20 October, 15:30

I think of a number, double it, and subtract two. I get nine. using the statement above, from an equation. Use the letter "X" for the unknown number.

solve the equation as well.

Answer:

5.5

Step-by-step explanation:

your number is X

doubling it=2X

2X-2=9

using like terms ...

2X=9+2

2X=11

dividing through by 2

2X/2=11/2

X=5.5

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Answers (1)
  1. 20 October, 15:45
    0
    Answer: The no. thought is 5.5

    Step-by-step explanation: Let the no. thought be ' x '

    2x - 2 = 9

    2x = 9+2

    2x = 11

    x = 11/2 = 5.5
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