11-01-2017
Mathematics

contestada

7-x=21. help ????????????

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2121bmoon 2121bmoon

11-01-2017

x=-14
do you want an explanation

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Helpmeplease1749 Helpmeplease1749

11-01-2017

Ignore the work
The answer is -14

7-x= 21
-7 -7
-x= 14
_ _
- -
X= -14

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