Question 112140: In giving an example of an equation, I wrote 8+5(22)=118. My teacher says this is not an equation but I do not understand why. Can you tell me why?
Answer by BrittanyM(80)   (Show Source):
You can put this solution on YOUR website! When your instructor asked for an equation he meant for you to include variables.
You gave a true mathematical statement, but an equation involves unknown numbers.
In order to change your statement into an equation, you could substitte the 22 for an x.
Instead of 8 + 5(22) = 118
you could have 8 + 5(x) =118
In equations, we have to be able to solve for an unknown. In substituting 22 for x, we're allowing someone to solve for the value of the variable.
That's the difference between staements and equations.
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