How to find the value of the function f after applying translation on x axis

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Suppose that the function $f(x)$ is defined for all real numbers. If $f (x) = |x|$ for $x ∈ [−7, 7]$ and $f(x) = f(x + 25)$ for $x ∈ R$, what is the value $f(120)$ ?

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As f(120) = f(-5 + 5×25) the answer is ...