PLS HELP!!! I attached the question in the picture below

Mathematics

1 answer:

Iteru [2.4K]1 year ago

8 0

Take a square root if both sides and you will get
a+6=7 and a+6=-7

For a+6=7
Subtract 6 from both sides
a=1

For a+6=-7
Again subtract 6 from both sides
a=-13

Therefore, the last answer is correct

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