Question 254038
Solve by graphing. Write no solution or infinetly many solutions where appropriate. 

{{{ y= x-1 }}}
  {{{AND}}}
{{{ y= -x+7}}}
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Graph y = x-1
Let x = 0, then y = -1 giving you point (0,-1)
Let y = 0, then x = 1 giving you point (1,0)
Plot those points and draw a line thru them.
{{{graph(400,300,-10,10,-10,10,x-1)}}}
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Graph y = -x+7
Let x = 0, then y = 7 giving you point (0,7)
Let y = 0, then x = 7 giving you point (7,0)
Plot those points and draw a line thru them.
{{{graph(400,300,-10,10,-10,10,-x+7)}}}
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Put both on the same axes and try to find the point of intersection.
{{{graph(400,300,-10,10,-10,10,x-1,-x+7)}}}
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Solution: (4,3)
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Cheers,
Stan H.