Your answers are correct.
It's the 2nd and 4th one.
Hope this helps! (:
Original equation: 5c-4-2c+1=8c+2
The first thing you want to do is combine like terms:
3c-3=8c+2
Then. get the variable on its own side by subtracting the 3c from the left and subtracting the 2 from the right:
-5=5c
Divide both sides by 5 to get c by itself:
-1=c
