Answer: Between integers 6 and 7
Math:
5x = 3x + 13
5x -3x = 3x -3x + 13
2x = 13
(2x) : 2 = (13) : 2
Int (6) < (x = 6.5) < Int (7)
Yes.
A positive... in basic math (integers).
+/- 11
No answer in integers. Near approximation x = -0.09 or -1.24
No answer in integers. Quadratic formula gives roots as -1.268 and -4.732
Closure of the set of integers under addition.
There are 6 such triples.
Integers are whole numbers: 1, 2, 3, and so on. Example: 1 + 1 = 2 (one plus one equals two).
The Abelian (commutative) property of integers under addition.
10 and 11
The Abelian or commutative property of addition of integers, rationals, reals or complex numbers.
If a, b, c, and d are positive integers that add up to 20 they each must be less than 20. If abcd=81 then a, b, c, and d must be factors of 81. The factors of 81 are 1,3,9 then 27, so there is no solution to this problem.