We have looked at how to solve equations with one unknown value, but what happens when there are two unknown values? An equation with two unknown values will have infinitely many solutions. or \(x=100 ...

Abstract: This paper proposes a new algorithm for two-stage robust optimization problems like security-constrained transmission switching called column-and-constraint substitution. Previous methods ...

In this article, we have prepared 25 questions based on Problem solving by substitution method as it is very necessary from the point of view of questions asked in SSC exams. In this article, The ...

Abstract: In the past unsupervised HMM training has been applied to solve letter substitution ciphers as they appear in various problems in Natural Language Processing. For some problems, parts of the ...

Substitution means putting numbers in place of letters to calculate the value of an expression. An expression can be a combination of numbers, letters and operators, grouped together.