Asked by Kitty

What would be a good way to solve this problem, d - 21 = 87? Thanks
Answered by Ms. Sue
Add 21 to both sides.

Answered by Kitty
So 21+87 right?
Answered by Ms. Sue
Yes.

d = ?


Answered by Kitty
Oh I got the answer! 21 + 87 = 108 and 108 - 21 = 87. Thanks Ms. Sue!
Answered by Kitty
So d = 108
Answered by Ms. Sue
You're welcome.
Answered by Miley
Thanks
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