Answer:
y=-9
Solution:
- First, subtract 6 from both sides.
 - 6+y=-3
 - Or
 - y+6=-3
 - Why subtract? Because 6 is added to y, and we need to use the opposite operation. Remember, our goal is to find the value of y.
 - Subtract:
 - y=-3-6
 - y=-9
 - We have found the value of y; it's equivalent to -9.
 
Hope it helps.
Do comment if you have any query.