subtract 9n+2/8 - 4n+1/4.?

You must present questions clearly by using brackets.

(9n + 2) / 8 - (4n + 1) / 4

(9n + 2) / 8 - 2 (4n + 1) / 8

(9n + 2) / 8 - (8n + 2) / 8

(9n + 2 - 8n - 2) / 8

n / 8

-9n - 8 + 4n < -a million assemble the like words -9n + 4n - 8 < -a million -5n -8 < -a million upload 8 to the two factors -5n < 7 Divide via -5, yet submit to in suggestions that, once you divide via a destructive with an inequality, you opposite the fewer than/greater advantageous than sign. n > 7/5

(9n + 2)/8 - (4n + 1)/4
= (9n + 2)/8 - [2(4n + 1)]/[2(4)]
= (9n + 2)/8 - (8n + 2)/8
= (9n + 2 - 8n - 2)/8
= n/8

(2/8)-(1/4)=0 so that leaves 9n - 4n which = 5n
the plus sign in the 4n+1/4 turns minus. I forgot how or why but it does.

(9n+2)/8 - (4n+1)/4
={(9n+2) -(4n+1)}/32
={36n+8 -32n -8}/32
={4n}/32 = n/8

5N

9n+2/8 - 4n+1/4= 5n