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If
f(x)=5x-3, what is the value of
f(4) ?

If $f(x)=5 x-3$ , what is the value of $f(4)$ ?

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Solve equations using cube roots

Full solution

Q. If

f(x)=5 x-3

, what is the value of

f(4)

?

Substitute $x$ with $4$ : To find the value of $f(4)$ , we need to substitute $x$ with $4$ in the function $f(x) = 5x - 3$ . $\newline$ Calculation: $f(4) = 5(4) - 3$
Multiply $5$ by $4$ : Now, we multiply $5$ by $4$ to get $20$ . $\newline$ Calculation: $5 \times 4 = 20$
Subtract $3$ from $20$ : Next, we subtract $3$ from $20$ to find the value of $f(4)$ . $\newline$ Calculation: $20 - 3 = 17$

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