document.write( "Question 324647: Solve using substitution:
\n" ); document.write( "-y − 5x = -7
\n" ); document.write( "2y − 2x = 14 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve using substitution:
\n" ); document.write( "-8x = -4 − y
\n" ); document.write( "3y -24x = 8 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve using elimination:
\n" ); document.write( "6x − 2y − 3= 0
\n" ); document.write( "4y − 4x = -6 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve using elimination:
\n" ); document.write( "5x − 7y − 1= 0
\n" ); document.write( "-10y − 5x = -1 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve using elimination:
\n" ); document.write( "-4y + 2x − 8 = 0
\n" ); document.write( "-3x + 6y = 12
\n" ); document.write( " \r
\n" ); document.write( "\n" ); document.write( "Solve using elimination:
\n" ); document.write( "8y = -2x − 16
\n" ); document.write( "-x − 4y - 8 = 0 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #232390 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
Solve using substitution:
\n" ); document.write( "-y − 5x = -7 --> y = -5x + 7
\n" ); document.write( "2y − 2x = 14 --> y - x = 7
\n" ); document.write( "Sub for y in the 2nd equation.
\n" ); document.write( "------------------------------\r
\n" ); document.write( "\n" ); document.write( "Solve using substitution:
\n" ); document.write( "-8x = -4 − y
\n" ); document.write( "3y -24x = 8
\n" ); document.write( "Do it like the 1st one.
\n" ); document.write( "---------------------------
\n" ); document.write( "Solve using elimination:
\n" ); document.write( "6x − 2y − 3= 0
\n" ); document.write( "4y − 4x = -6 --> -2x + 2y = -3
\n" ); document.write( "Add the 2 equaions to eliminate y terms.
\n" ); document.write( "-----------------------------
\n" ); document.write( "Solve using elimination:
\n" ); document.write( "5x − 7y − 1= 0
\n" ); document.write( "-10y − 5x = -1
\n" ); document.write( "Multiply the 1st eqn by 2, then add them.
\n" ); document.write( "---------------------------
\n" ); document.write( "Solve using elimination:
\n" ); document.write( "-4y + 2x − 8 = 0
\n" ); document.write( "-3x + 6y = 12 \r
\n" ); document.write( "\n" ); document.write( "Solve using elimination:
\n" ); document.write( "8y = -2x − 16
\n" ); document.write( "-x − 4y - 8 = 0
\n" ); document.write( " \n" ); document.write( "

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