Question 364770
First find the slope.
{{{m=(y[2]-y[1])/(x[2]-x[1])}}}
{{{m=(7-6)/(-5-(-2))=(7-6)/(-5+3)}}}
When you have the slope, use the point-slope form,
{{{y-y[p]=m(x-x[p])}}} with either point.
{{{y-7=m(x-(-5))}}}
{{{highlight(y-7=m(x+5))}}}
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Convert to slope-intercept form, {{{y=mx+b}}}
{{{y=mx+5m+7}}}
{{{highlight(y=mx+(5m+7))}}}
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Then convert to standard form, get rid of all denominators. 
Move x and y to the left hand side, constant on the right hand side.
Coefficient for x should be positive.
{{{highlight(ax+by=c)}}}