Question 100101
-c+2=5 [isolate or solve for the unknown variable (c)]
-c+2-2=5-2
-c=3
-c/-1=3/-1
c=-3
.
Check by plugging (c=-3) back into the original equation and solve:
-c+2=5
-(-3)+2=5
3+2=5
5=5 [checks out]