SOLUTION: well i dont know what kind of math is x+3= what is this called with x,a,b,f,

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Question 379054: well i dont know what kind of math is x+3=
what is this called with x,a,b,f,

Answer by richard1234(7193)   (Show Source): You can put this solution on YOUR website!
In this expression, x is a variable which represents an unknown number. For algebra problems in which we know the value of x, we can replace x with this number.
Many times, you'll see something like f(x) (or g(x), h(x), etc.). This does not mean f times x. Instead, f(x) is a function in terms of x. For example, if f(x) = 4x + 3 and we want to find the value of f(10), we can replace x with 10 to obtain f(10) = 4*10 + 3 = 43.

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