The expression `x + 3` is in (a) one variable (b) two variables (c) no variable (d) none of these.​

The variables x and y in a linear programming problem are called A) decision variables B) linear variables C) optimal variables D) None of these

If variance of variable is 50 then x=

System OF linear equation in one variable || two variable|| three variable

Linear equation in two variable

Express the equation 5y =9 as linear equation in two variables

Solution of Equation with two variable