13
-5
Eight Times table: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 x 9 = 72 8 x 10 = 80 8 x 11 = 88 8 x 12 = 96Five times table:5 x 0 = 0 5 x 1 = 5 5 x 2 = 10 5 x 3 = 15 5 x 4 = 20 5 x 5 = 25 5 x 6 = 30 5 x 7 = 35 5 x 8 = 40 5 x 9 = 45 5 x 10 = 50 5 x 11 = 55 5 x 12 = 60For tips on how to learn and remember these tables see the related links
If you mean: x+8-x+9 when x = 5 Then it is: 5+8-5+9 = 17
3
x = 0.625or 5/8
-3
Here's the original equation: x+8 =5 subtract 8 from both sides: x + 8 - 8 = 5 - 8 left side: x + 8 - 8 = x right side: 5 - 8 = -3 put them together: x = -3
x/5 = 8/21 x = 8/21 * 5 x = 1.904761905
3
13
8 x (2 + 5/5) = 8 x (2 + 1) = 8 x 3 = 24
x-4=8+x/5 5(x-4)=5(8+x/5) 5x-20=8+x 4x=28 x=7