Respuesta :

add the like terms

14x=-3+x

subtract x from both sides

13x=-3

divide both sides by 13

x=-3/13

Hey,here is the answer to ur question,
7x+7x=-3+x
=>14x=-3+x
=>14x-x =-3
=>13x=-3
=>x =-3/13
Hope this helps u.....!!!