How can you solve an equation with the variable on both sides plz

I don't know if this is the right one but i hope this helps. this is how i learned it. 
step 1=get variables on one side oof the equal sign by using inverse operation (add or subtract smaller variable) 
step 2= get constants away from variable to the other side of the equal sign by using inverse operations (add or subtract constant) 
step 3: isolate the variable using inverse operation (multiply or divide) 

Hmm i believe it would be c