his braces are black.
-40 = 8-6s -40 - 8 = 6s -48 = 6s 8 = s
-6s+10 = -5s 5s-6s = -10 -s = -10 s = 10
6s, 12s, 18s, 24s, 30s, 36s and so on.
I have personal experience with this. At first it is difficult and will cut your lips, but eventually you develop scar tissue and if you can adjust your embouchure, you'll do perfectly fine. I play with braces and am in my school's top band.
If you mean: 19s = 4-6s then the value of s works out as 4/25 If you mean: 19s+4-6s then it can be simplified to 13s+4
(s + 6)(6s - 7)
you can get the colors on when you get the bracets on. The colors are actutally rubber band strands that get placed on the bracets. that's actually how they tighten braces is by cutting the colored bands that are on the bracets. they get swicthed every visit.
iPhone 6s comes in two storage variants which are 32GB and 128GB.
there will be 10 6s through the whole thing
16
1 - s = 6 - 6s => 5s = 5 so that s = 1