document.write( "Question 301746: 6x+y=44
\n" ); document.write( "6x+7y=28 \r
\n" ); document.write( "\n" ); document.write( "I do it this way correct:
\n" ); document.write( "6x+7y(44-6x)=28
\n" ); document.write( "6x=308-42x=28
\n" ); document.write( "48x+308=28
\n" ); document.write( "co efficient is 48
\n" ); document.write( "48x+308=28
\n" ); document.write( "48x-336
\n" ); document.write( "x=7
\n" ); document.write( "y=44 -6(7x)
\n" ); document.write( "44-42
\n" ); document.write( "y = 2
\n" ); document.write( "

Algebra.Com's Answer #216379 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
easy setup for elimination method
\n" ); document.write( "\"6x%2By=44\" multiply this one by a -1
\n" ); document.write( "\"6x%2B7y=28\"
\n" ); document.write( "_____________
\n" ); document.write( "Substitution
\n" ); document.write( "\"y=44-6x\"
\n" ); document.write( "\"6x%2B7%2844-6x%29=28%0D%0A%7B%7B%7B6x-42x%2B308=28\"
\n" ); document.write( "\"-36x=280\"
\n" ); document.write( "\"x=-70%2F9\"
\n" ); document.write( "\"6x%2B7y=28\"
\n" ); document.write( "\"6%28-70%2F9%29%2B7y=28\"
\n" ); document.write( "\"%28-420%2F9%29%2B7y=252%2F9\"
\n" ); document.write( "\"7y=672%2F9\"
\n" ); document.write( "\"7y=224%2F3\"
\n" ); document.write( "\"y=224%2F21\"
\n" ); document.write( "\"y=32%2F3\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "___________
\n" ); document.write( "Elimination
\n" ); document.write( "\"-6x-y=-44\"
\n" ); document.write( "\"6x%2B7y=28\"add these equations together
\n" ); document.write( "\"6y=-16\"
\n" ); document.write( "\"y=-16%2F6\"
\n" ); document.write( "\"y=-8%2F3\"
\n" ); document.write( "_____
\n" ); document.write( "\"6x%2By=44\"
\n" ); document.write( "\"6x%2B%28-8%2F3%29=44\"
\n" ); document.write( "\"6x=44%2B%288%2F3%29\"
\n" ); document.write( "\"6x=132%2F3%2B%288%2F3%29\"
\n" ); document.write( "\"6x=140%2F3\" multiply by 1/6
\n" ); document.write( "\"x=140%2F18\"
\n" ); document.write( "\"x=70%2F9\"
\n" ); document.write( "__________________
\n" ); document.write( "CHECKING
\n" ); document.write( "\"6x%2By=44\"
\n" ); document.write( "\"6%28-8%2F3%29%2B%2870%2F9%29=44\"
\n" ); document.write( "\"2%28-8%29%2B%2870%2F9%29=44\"
\n" ); document.write( "\"%28-16%29%2B%2870%2F9%29=44\"
\n" ); document.write( "\"%28-144%2F9%29%2B%2870%2F9%29=44\"
\n" ); document.write( "comes out wrong with either method so either the problem is written incorrectly or the answer is no solutions.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "lol looks like im the only tutor who actually checks my answers. 1 guy below checked once but still didnt find that there is no solution to this set of equations.
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