document.write( "Question 695013: 6a=2-b use the method of substiution
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pick one equation and solve for a or b
\n" ); document.write( "6a=6-b divide by 6
\n" ); document.write( "a=1-b/6
\n" ); document.write( "now that you know what a is, plug in all that into the other equation where a is
\n" ); document.write( "6(1-b/6)=2-b
\n" ); document.write( "6-b=2-b add b to both sides
\n" ); document.write( "6=2 is false, these lines are parallel so the answer is empty set, or no solution
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