6n + 9 = -3n-21-6 for n Please help I am very confused

Question

6n + 9 = -3n-21-6 for n  Please help I am very confused

thachthao · Answer

Answer:   n=-4   Step-by-step explanation:   6n+9=-3n-21-6  6n+9=-3n-27  9n=-36  n=-4    Hope this helps plz hit the crown :D