document.write( "Question 606993: i am hoping that you can help me with this linear systems by substitution question y=2x-1
\n" ); document.write( " x+5y=28 \n" ); document.write( "

Algebra.Com's Answer #382333 by mananth(16946) $\"\"$ $\"About$

You can put this solution on YOUR website!
1 x + 5 y = 28 .............1
\n" ); document.write( "5 y = 28- x
\n" ); document.write( "/ 5 =
\n" ); document.write( " y = 5.6-0.2 x
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\n" ); document.write( "-2x+y = -1
\n" ); document.write( "Substitute y in (2)
\n" ); document.write( "-2x+1(5.6-0.2x)=-2x+5.6 -0.2x=-1
\n" ); document.write( "-2x-0.2x=-6.6
\n" ); document.write( "-2.2 x = -6.6
\n" ); document.write( "/ -2.2
\n" ); document.write( "x= 3
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "x+5y=28
\n" ); document.write( "1*3+5y= 28
\n" ); document.write( "3 + 5 y = 28
\n" ); document.write( "5 y = 25
\n" ); document.write( "/ 5
\n" ); document.write( "y= 5
\n" ); document.write( "m.ananth@hotmail.ca
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