Explanation:
f(x)= 7x - 6
f(x) = 0
7x - 6 = 0
7x = 6
x = 6/7 ? (I think you need to solve for x)
I'm not sure tho^^
put the value of f(x) = 0
f(0) = 7(0)-6
=0-6
= -6
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