Answer:
Not necessarily
Step-by-step explanation:
A "solution" and a "zero" are the same thing for the equation ...
f(x) = 0
For anything else, such as ...
f(x) = 1
a zero of f(x) is <em>not a solution</em>.
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All equations can be put into the form
f(x) = 0
so a zero will be a solution to it. I often use this form with a graphing calculator, because those are adept at finding zeros.