n+3=12

n=9

Please indicate subject rather than grade level.

Subtract 3 from both sides of the equation to get your answer.

I hope this helps a little more. Thanks for asking.

n+3=12

n=(4)
4x3=12..... simple :)

n+3=12

12
- 3
_____
9 n+3=12
CHECK IT! 9+3=12
9 n=9
+3
___
12 TADA!!!

n+3=12

transposing (-3)to r.h.s
n=12-3
n=9

n=9.

5x-8=7