How to solve an equation by substituting possible solutions?
782
What are the most common pitfalls awaiting new users?
113407
Finding all solutions for a system of equations with constraint on the sum of absolute values
131941
Solve quadratic congruences.
18903
Finding solutions to equation of the form $1+x+x^{2} + \cdots + x^{m} = y^{n}$
13242
Is there a systematic way of solving cubic equations?
91881
How solve this equation
124761
Solve for a vector in the equation
32071
General solution of linear equation = particular + general homogeneous solution
108869
Solve the following equations for $x, (x ∈ N^+) (a)\ 2φ(x) = x; (b)\ 3φ(x) = x; (c)\ 4φ(x) = x.$
121113
How to solve this nonlinear 2 by 2 equations?
61134
Solving cubic equations with another method.
110408
Solving for $A$ in $Ax = b$
58563
Using the result of Solve in subsequent calculations
105119
Are there any other methods to apply to solving simultaneous equations?
82016
Given $p^2+q^2+r^2+1=s+\sqrt{p+q+r-s}$, solve for $s$
89705
How to solve $a_n = 2a_{n-1} + 1, a_0 = 0, a_1 = 1$?
73079
Eliminating non-integer solutions to $ab / (2\sqrt{ab} + a + b)$