-m/2=8n-5-3n
-m/2=5n-5
-m/2=5(n-1)
m=-10(n-1)
the first step i have simply moved terms to the right side. the 2nd i have collected the n term on the right. the third I have factorided 5 from the two terms. then i have multiplied both sides by -2 to isolate m