Question 375634
Solve them how?? Usually you use the function to give you output values for a given input value. 
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Kind of, yes. 
However, functions require a unique y value for each given x value. 
So an equation like, {{{y^2=x}}}, although an equation is not a function because for x=1, y can equal 1 and y can equal -1, so there is not a unique y value for each x.