document.write( "Question 322753: how do i solve y=4x-8 and y=2x+10 using substitution? \n" ); document.write( "

Algebra.Com's Answer #231025 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. $\"y=4x-8\"$
\n" ); document.write( "2. $\"y=2x%2B10\"$
\n" ); document.write( "Substitute for y in eq. 1 using eq. 2,
\n" ); document.write( " $\"2x%2B10=4x-8\"$
\n" ); document.write( " $\"2x=18\"$
\n" ); document.write( " $\"highlight%28x=9%29\"$
\n" ); document.write( "Now use either equation to solve for y,
\n" ); document.write( " $\"y=4%289%29-8\"$
\n" ); document.write( " $\"y=36-8\"$
\n" ); document.write( " $\"highlight%28y=28%29\"$ \n" ); document.write( "

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