How many integer solutions of $x_1$ + $x_2$ + $x_3$ + $x_4$ = 28 are there with
108941
Combinatorics Question Asking How Many Integer Solutions Given Different Restrictions
103165
the number of the positive integer numbers $k$ that makes for the two quadratic equations $ \pm x^2 \pm px \pm k$ rational roots.
54608
How to find all solutions of $4^x-3^x=1$?
126820
How many positive integer solutions are there to the equality $x_1+x_2+...+x_r= n$?
123159
Solutions of the diophantine equation $x+y+z=xyz$?
13120
Find all integer solutions to $x^2+y^2+z^2=2xyz$
140763
How to prove that $\sum_{n=1}^{2012} \frac{1}{x_n} = 1 $ has finitely many solutions for positive integer $x_i$?
29078
find all the values of a and b so that the system has a) no solution b) 1 solution c) exactly 3 solutions and 4) infinitely many solutions
130565
Find all solutions to $x^3+(x+1)^3+ \dots + (x+15)^3=y^3$
63194
Find all integer solutions to $x^2-2y^2=1$
151732
Number of solutions of polynomials in a field
77595
Number of solutions of $x_1 + 2x_2 + 3x_3 + \cdots + n x_n = p$
106271
Solutions of Diophantine equations in Natural numbers
28594
Number of integer solutions of the following equation
24837
$x^2+1=0$ uncountable many solutions
79925
Infinitely many values of $x$ that satisfy the equations
94700
Integer solutions for $x^3+2=y^2$?