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Math·Algebra·Linear equations in two variables

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$f(x)=7x-5$
Function $f$ is defined by the given equation. The function $g$ is defined by $g(x)=f(x)-(5x-2)$. What is the $x$-coordinate of the $x$-intercept of the graph of $y=g(x)$ in the $xy$-plane?

A

7/12

B

5/7

C

3/2

D

7/2