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09-10-2019
Mathematics

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you ask a friend to think of a, dounle it and add 10. his answer is 42.if x is the number he thinks if, write the equation

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09-10-2019

Your friend thinks of a number --> x

Doubles it --> 2x

Adds 10 --> 2x+10

The final result is 42, so we have

[tex]2x+10=42 \iff 2x=32 \iff x=16[/tex]

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