Question 686937

{{{7a = 4 - b}}}
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{{{7a = 3 - b}}}
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{{{7a-7a = 4-3 - b-(-b)}}}

{{{0= 1 -b+b}}}

{{{0= 1+0}}}..........{{{no}}}{{{ solutions}}}

{{{ graph( 600, 600, -10, 10, -10, 10, -7x+4,-7x+3) }}}


From the graph, we can see that the two lines are {{{parallel}}} and will never intersect. So there are {{{no}}}{{{ solutions}}} and the system is {{{inconsistent}}}.