rachaelerbe rachaelerbe

23-03-2020
Mathematics

contestada

A number no decreased by the difference between seven and the number

Respuesta :

aylagassner aylagassner

24-03-2020

Answer:

2a-7

Step-by-step explanation:

say our number is a

a-(7-a)

get rid of the perenthesis

a-7+a

put the variables on one side

a+a-7

so the answer is 2a-7

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