Question

twice X decreased by 9 gives 11​

Answer 1

Answer:

20.... because,I added like this,

11+9=20.

Step-by-step explanation:

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Answer 2

Answer:

twice x= 2x,

therefore equation= 2x-9=11

=2x=11+9=20

=x=20/2

=x=10

Step-by-step explanation:

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