If you mean: x+8-x+9 when x = 5 Then it is: 5+8-5+9 = 17
8 is twice as big as 4. 9 x 8 is twice as big as 9 x 4.
7/8 x 8/9 = 7/9
Since 8 is 2 x 4, 9 x 8 is 2 x 9 x 4
1 Through 9 to 9 Through 1:1 x 8 + 1 = 912 x 8 + 2 = 98123 x 8 + 3 = 9871234 x 8 + 4 = 987612345 x 8 + 5 = 98765123456 x 8 + 6 = 9876541234567 x 8 + 7 = 987654312345678 x 8 + 8 = 98765432123456789 x 8 + 9 = 987654321Sequential Input to All 1's:1 x 9 + 2 = 1112 x 9 + 3 = 111123 x 9 + 4 = 11111234 x 9 + 5 = 1111112345 x 9 + 6 = 111111123456 x 9 + 7 = 11111111234567 x 9 + 8 = 1111111112345678 x 9 + 9 = 111111111123456789 x 9 + 10 = 1111111111All 1's to a Numeric Palindrome:1 x 1 = 111 x 11 = 121111 x 111 = 123211111 x 1111 = 123432111111 x 11111 = 123454321111111 x 111111 = 123456543211111111 x 1111111 = 123456765432111111111 x 11111111 = 123456787654321111111111 x 111111111 = 12345678987654321
If x = 8, then 23 -x - 9 = 23 - 8 - 9 = 6
The answer is '72'. However, learn your '8' times table and your '9' times table. of multipolication. 8 times 8 x 1 = 8 8 x 2 = 16 8 x 3 = 24 8 x 4 = 32 8 x 5 = 40 8 x 6 = 48 8 x 7 = 56 8 x 8 = 64 ( 8^2 ; 8 squared) 8 x 9 = 72 ( as answered) 8 x 10 = 80 8 x 11 - 88 8 x 12 = 96 And 9 times 9 x 1 = 9 9 x 2 = 18 9 x 3 = 27 9 x 4 = 36 9 x 5 = 45 9x 6 = 54 9 x 7 = 63 9 x 8 = 72 ( as answered) 9 x 9 = 81 ( 9^2 ; 9 squared) 9 x 10 = 90 9 x 11 = 99 9 x 12 = 108
x + 9 = 8 Therefore, x = 8 - 9 x = -1
9 x 8! = 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1So, 9 x 8! = 9! = 362,800
9 * -8 - 8 = - 72 - 8 = - 80
-1
0.8889
If you mean: x+8-x+9 when x = 5 Then it is: 5+8-5+9 = 17
8 is twice as big as 4. 9 x 8 is twice as big as 9 x 4.
7/8 x 8/9 = 7/9
Since 8 is 2 x 4, 9 x 8 is 2 x 9 x 4
72 = 6 x 12 = 8 x 9 = 9 x 8