document.write( "Question 173162:
\n" ); document.write( "Linear ststems
\n" ); document.write( "solve using substitution
\n" ); document.write( "y=3-2x
\n" ); document.write( "y=5+2x\r
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Algebra.Com's Answer #128024 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
Substitute one y-equation for the other. In other words, set the equations equal to each other
\n" ); document.write( "5+2x=3-2x
\n" ); document.write( "Simplify and solve for the x-value
\n" ); document.write( "5-3=-2x-2x
\n" ); document.write( "2=-4x
\n" ); document.write( "-2/4=-4x/4
\n" ); document.write( "-2/4=x
\n" ); document.write( "Reduce the fractio to lowest terms
\n" ); document.write( "-1/2=x
\n" ); document.write( "Check by plugging -1/2 back into the equals\r
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