13 add something equals 30 = 43
-43
To find what plus 13 equals 30, you can set up the equation: ( x + 13 = 30 ). By subtracting 13 from both sides, you find that ( x = 30 - 13 ), which simplifies to ( x = 17 ). Therefore, 17 plus 13 equals 30.
The two numbers that multiply to -30 and add up to 13 are 15 and -2. When you multiply 15 and -2, you get -30, and when you add them together, you get 13.
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
-17
-43
The two numbers that multiply to -30 and add up to 13 are 15 and -2. When you multiply 15 and -2, you get -30, and when you add them together, you get 13.
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
4.5
It is 30 times 6 equals 180