Question 140616
To find where the graph crosses the x-axis, simply plug in y=0


{{{3*x+5*y=9}}} Start with the given equation


{{{3*x+5*(0)=9}}} Plug in {{{y=0}}}


{{{3*x=9}}} Simplify


{{{x=9/3}}} Divide both sides by 3



{{{x=3}}} Reduce



So the graph crosses the x-axis when {{{x=3}}}