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Question 218406: I need to know the basic outline of how to do a linear equation?
Answer by britt_xoxo(2)   (Show Source):
You can put this solution on YOUR website! http://www.youtube.com/watch?v=cwHR_B9zK7k
Linear
Equation: a mathematical expression that has an equal sign and linear expressions
Variable: a number that you don't know,
often represented by "x" or "y" but any letter will do!
Linear
Expression: a mathematical statement that performs functions of
addition, subtraction, multiplication, and division
Note: Variable(s) in linear expressions
Cannot have exponents (or powers)
For example, x squared or x 2
Cannot multiply or divide each other
For example: "x" times "y" or xy; "x" divided by "y" or x/y
Cannot be found under a root sign or square root sign (sqrt)
For example: Ö x or the "square root of x"; sqrt (x)
These are examples of linear expressions:
x + 4
2x + 4
2x + 4y
These are not linear expressions:
x2 (no exponents on variables)
2xy + 4 (can't multiply two variables)
2x / 4y (can't divide two variables)
Ö x (no square root sign on variables)
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