Answer :
The answer I got was -6
Here’s the explanation
First you subtract three in both sides 15-3= 12
Then you divide 12 by -2 which is -6
-2X-6=12 12+3=15
Here’s the explanation
First you subtract three in both sides 15-3= 12
Then you divide 12 by -2 which is -6
-2X-6=12 12+3=15