The answer is 15. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
-4 + x = 11
If you add 4 to both sides it gives you x (since the 4 and -4 cancel out)
-4 + 4 + x = 11 + 4
x = 15
It is a mathematical equation. Written, it would look more like
11 + x = -4
It's a first-degree equation in 'A'.
Its solution is [ A = 7 ].
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
-7 + 11 = +4
3
It is an equation and the value of x is 4
3x + 11 = x + 3 2x = -8 x = -4
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
-7 + 11 = +4
11
Anton Heinrich Springer?
-15 + 4 = -11
-11
4
(11, 5)
7 + 4 = 11
5
a = 4
11