5n+4=0 5n=-4 n= -4/5
5n+4 = -26 5n = -26-4 5n = -30 n = -6
5n+6=(-4) n= (-2)
5n - 4 = 10n + 6-5n = 10n = -2
5n+6=-45n=-10n=-2
-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4
5n - n = 8 + 4 ie 4n = 12 so n = 3
8n-2+4n = 66-5n 8n+4n+5n = 66+2 17n = 68 n = 4
It is an algebra expression meaning: 5n+4
4 over 5n
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
answer is -5.8(-5) + 4 = 5(-5) - 11-40 + 4 = -25 - 11-36 = -36