sergiomon01 sergiomon01

24-08-2017
Mathematics

contestada

double my number
add four
subtract my number
and
subtract three

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apologiabiology apologiabiology

24-08-2017

x is your number

double it means 2 times x or 2x

add 4
2x+4

subtract my number
2x+4-x=x+4

subtract 3

x+4-3=x+1

the result is x+1 or your number plus 1

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