Seven times a number is equal to 9 more than 4 times the number. find the number

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asked Oct 10, 2017 231k views

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Seven times a number is equal to 9 more than 4 times the number. find the number

Mathematics
high-school

David Hariri asked

by David Hariri

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represent 'a number' by x
7 times x equals 9 more than 4 times x
7 times x=9+4 times x
7x=9+4x
subtract 4x from both sides
3x=9
divide 3
x=3

the number is 3

Leonardo Villela answered Oct 14, 2017

by Leonardo Villela

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