There are three kinds:
There can be linear equations with 1, 2, ... variables. Each of these is different since an equation with n variables belongs to n-dimensional space.
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Yes, both kinds exist.
There is no meaningful way of doing so. x + y = 3 is a linear equation in two variables x2 + x = 3 is a quadratic equation in one variable. Both have the same number of terms but they are not of the same kind.
The answer depends on the nature of the equation. Just as there are different ways of solving a linear equation with a real solution and a quadratic equation with real solutions, and other kinds of equations, there are different methods for solving different kinds of imaginary equations.
independent variable,depedent variable and control variable are the 3 kinds of variables.
Dependent and independent (Experimental variables)Primitives and Reference variables (Java Programming)...
Linear and Exponetional.
there are to many kinds of crystals no equation>>
independent, dependent, controlled
Linear and rotational
the three kinds of variables are independent,dependent and controlled