Wiki User
∙ 2010-08-30 23:46:57127 easy math people
Wiki User
∙ 2010-08-30 23:46:578x+9=9x-18+9 = 8x+9=9x-9 = 1x=0 (:
true
18. 9 x 0 = 0 S0, 9 + 0 + 9 = 18
4+4=8+0=8+1=9+1=10+0=10+1=11 It equals 11. You're welcome.
Tautology?
10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 + 0 = 55
9+8=17.
144 9+7 = 16 and 9*16 = 144
-13+4+(-8)= -9+(-8) = -9-8 = -17
True. 9 + 8 + 1= 18 and 9 + 1 + 8 =18.
16
Yes, it is true.