Answer:
Explanation:
this is all about your algebra skillz, learn it , know it , live it :P
anyway
I'll make this very detailed , so you see the process. but lean it
3n+8 = 5n-4
begin using reverse operation order, note you need to know P.E.M.D.A.S , Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. starting from the "Parenthesis, and the working down thur each operation is forward operation order. I bet nobody has told you this before, huh. So to do the algebra on the equation above use reverse operation order.
so, I'm going to move the -4 , first
3n+8+4 = 5n-4+4 ( do the same thing on both sides of the equal sign)
3n+12 = 5n
now I'm going to move the 3n
3n+12 -3n = 5n -3n ( do the same on both sides again)
12 = 2n
now i'm moving up to Division, b/c it's next on our order of operations, i'll divide the 2 away from the n
12/2 = 2n / 2 ( same on both side again)
6 = n
now we have our answer for n, nice :P try this at home, school, or at your local coffee shop :P