-43
If you mean adding in groups, I suppose you could break 34 into 30 and 4. Then you could add 9 to 4 to get 12, and then perhaps more easily add 13 and 30 to get 43.
It is: 13+17 = 30
Add them together which equals 59
4.5
-17
-43
If you mean adding in groups, I suppose you could break 34 into 30 and 4. Then you could add 9 to 4 to get 12, and then perhaps more easily add 13 and 30 to get 43.
2x-17=13 2x=30 x=15
How about: 23+7 = 30 or 17+13 = 30
1x30
x=30...9+30=39 then divide by 3 equals 13.
It is: 13+17 = 30
Add them together which equals 59
No, it is -5/13
4.5
It is 30 times 6 equals 180