-17 = -2n+13-8n
Subtract 13 from both sides and bring terms together:
-30 = -10n
Divide both sides by -10 to find the value of n which will be positive:
n = 3
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you have 9n+17=-1 -17 -17 9n=-18 /9 /9 n= -2
(0,7)
(4 ± i2) where i2 = -1
119
-3+y=17+1 im assuming solve for y?-3+y=18 add 3 to both sidesy=21