SoccerKing14 SoccerKing14

15-05-2017
Mathematics

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When 10 is added to the number that is produced by doubling the number x, the result is equal to 5 times the number that is 7 less that x. What is the value of x?

Respuesta :

16-06-2017

10+2(x)=5(x-7)
10+2(x)=5(x)-35
35+10=5(x)-2(x)
45=3(x)
45/3=x
x=15

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