Question

Neeeeeeeeeeeeeeeed Helppppppppppppp

Answer 1

Because a ║b you can say: 
-60 -2x = -70 -4x ⇒ -2x + 4x = -70 + 60 ⇒ 2x = -10 ⇒ x = -5 :)))
i hope this is helpful
have a nice day