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What are independent variables and dependent variables in math?
Independent variables are the input value of a function (usually x) and dependent variables are the output value of the function (usually y).
What is an expression that is written using one or more variables?
An expression written with 1 or more variables is called an equasion
Are two variables can be written in one statement?
yes. 2 variables can be written in one statement. take for example the equation y=3x+5, as long as you have a single solution to work with there can be 2 variables.
What is definite variable?
There is no such thing as definite variable in mathematics. Some of the variables in mathematics are independent and dependent variables. More variables are usually found in probability textbooks.
Can a mathematical expression have no variables?
Yes, a mathematical expression can have no variables, but such an expression is usually not very useful. An example of a valid expression without variables is: 1+1=2
