Answers

2016-01-25T20:25:06+08:00
Solve it reversed
7+x=-6
make  the addition
 to subtraction 
=-6-7=13 or -6+-7=13

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  • Brainly User
2016-01-25T21:41:56+08:00
Let x be the number to be added to 7:
     7 + x = -6
     7 - 7 + x = -6 - 7
     x = -6 - 7
     x = -13

ANSWER:  -13

Check:
7 + (-13) = -6
-6 = -6    (True)
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