Question 238001
Do you need to find the x and y coordinates of 9x-7y=-7?  Your question does not specify, so I'm going to assume this is what you are looking for.
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Steps to follow:
1. Draw a long "t" in your notebook (long vertically, not horizontaly). Use the left side for x values and the right side for y values. This is very useful to keep a tally of values.
2. Write 1, 2, 3, 4, 5 in the x column.
3. Find the formula that solves for y.
4. Plug each x value in the equation to find the y values. Those would be your coordinates!
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Problem:
{{{9x-7y=-7}}}
{{{-7y=-9x-7}}}
{{{y=(-9x-7)/(-7)}}} ...same as... {{{y=(-(9x+7))/-7}}} ...same as... {{{y=(9x+7)/7}}}
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{{{y=(9x+7)/7}}}
{{{y=(9*1+7)/7}}}
{{{y=16/7)}}}
Now you know that when x=1, y=16/7.  This is your first set of coordinates.
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{{{y=(9x+7)/7}}}
{{{y=(9*2+7)/7}}}
{{{y=25/7)}}}
Now you know that when x=2, y=25/7.  This is your second set of coordinates.
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Continue doing the same operation with as many numbers as you want or need.
Done!