Question 1040764
When {{{x=0}}},
{{{3y=-7}}}
{{{y=-7/3}}}
({{{0}}},{{{-7/3}}})
.
.
.
When {{{y=0}}},
{{{-4x=-7}}}
{{{x=7/4}}}
({{{7/4}}},{{{0}}})
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.
.
Graph those two points. 
Then draw the line through them.
That is the line you seek.