In simultaneous equation is it ok to get diffrent answers because of diffrent method this is really making me confused

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.