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How do you solve d+12=2 using mental math

How do you solve d+12=2 using mental math
asked 60.4k views
3 votes
How do you solve d+12=2 using mental math

asked
User Makboney
by
7.8k points

1 Answer

5 votes
by minusing 12 to both sides
d+12=2
-12=-12
d =-10
answered
User Euan Smith
by
8.7k points
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