It is a set of values for the variable or variables in the equation such that, when those values are put into the equation, the resulting mathematical statement is true. The term can also refer to the process of finding a solution.
y = -2.5 is a equation. And solution to the equation is finding the value of the variable. If we see the equation y is already equal to -2.5 which is the solution to the equation.
An equation that has no solution is called an equation that has no solution.
a solution to an equation is the answer
The given algebraic expression has no solution because without an equality sign it is not an equation and so therefore finding a solution is not possible.
A solution is the answer to an equation.
In algebraic terms, the solution is the answer to equation.
Every equation has a solution.
You would have a reasonable shot at finding the correct solution.