Question

Solve for N.
-7 + N = 20

Answer 1

You would have to add 7 on both sides, cancelling the -7 on the side of the N and adding 7
To the 20 to get N=27

Answer 2

add 7 to both sides.
-7+N=20
+7 +7
N=27
answer= 27
hope it helps.......