QueenBee111 QueenBee111

18-09-2015
Mathematics

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a number increased by 4 is the same as 19 minus 2 times the number

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spilledmiilk spilledmiilk

19-09-2015

First you must write an equation which would be n + 4 = 19 - 2n. Than you solve for n like so:

n + 4 = 19 - 2n
- 4 -4
n = 15 - 2n
+ 2n + 2n
3n = 15
__ __

3 3

n = 5

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