document.write( "Question 993698: Good morning or afternoon whichever time zone you are in. I have a question about a linear equation I would like to ask. The problem is:\r
\n" ); document.write( "\n" ); document.write( "x=7-4y
\n" ); document.write( "6x-5y=-45
\n" ); document.write( " My question is, with the equation x=7-4y, do I add 4y to both sides of the equation so it looks like x+4y=7, before continuing to solve the rest of the problem?
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Algebra.Com's Answer #612911 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
No, you should substitute for x in the second equation with the first equation.
\n" ); document.write( "\"6%287-4y%29-5y=-45\"
\n" ); document.write( "Then solve for y.
\n" ); document.write( "Then go back and use the first equation to solve for x.
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