document.write( "Question 275815: find value of x and y
\n" ); document.write( "1.) 2x+5y=-9
\n" ); document.write( " 3x-4y=-2\r
\n" ); document.write( "\n" ); document.write( "2.) 4x+13y=40
\n" ); document.write( " 4x+3y=-40\r
\n" ); document.write( "\n" ); document.write( "3.) 2x-3y=-15
\n" ); document.write( " y=x-2\r
\n" ); document.write( "\n" ); document.write( "4.)2x-3y=-15
\n" ); document.write( " x=4y\r
\n" ); document.write( "\n" ); document.write( "5.)x+y=14
\n" ); document.write( " x=6y\r
\n" ); document.write( "\n" ); document.write( "6.)y=x-2
\n" ); document.write( " 7y-4x=10\r
\n" ); document.write( "\n" ); document.write( "i would really like to know these answers to this equations please!!!
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #201124 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
find value of x and y
\n" ); document.write( "1.)
\n" ); document.write( "2x+5y=-9
\n" ); document.write( "3x-4y=-2
\n" ); document.write( "---------------
\n" ); document.write( "Multiply 1st Eq by 3 ; Multiply 2nd Eq by 2
\n" ); document.write( "6x + 15y = - 27
\n" ); document.write( "6x - 8y = -4
\n" ); document.write( "----------------
\n" ); document.write( "Subtract 2nd from 1st and solve for \"y\":
\n" ); document.write( "23y = -23
\n" ); document.write( "y = -1
\n" ); document.write( "---------------------
\n" ); document.write( "Substitute into original #1 and solve for \"x\":
\n" ); document.write( "2x + 5(-1) = -9
\n" ); document.write( "2x = -4
\n" ); document.write( "x = -2
\n" ); document.write( "Ans: (-2,-1)
\n" ); document.write( "======================
\n" ); document.write( "
\n" ); document.write( "2.)
\n" ); document.write( "4x+13y=40
\n" ); document.write( "4x+3y=-40
\n" ); document.write( "-----------------------
\n" ); document.write( "Subtract 2nd from 1st:
\n" ); document.write( "10y = 80
\n" ); document.write( "y = 8
\n" ); document.write( "----
\n" ); document.write( "Substitute into 4x+3y = -40 to solve for \"x\":
\n" ); document.write( "4x + 3(8) = -40
\n" ); document.write( "4x + 24 = -40
\n" ); document.write( "4x = -64
\n" ); document.write( "x = -16
\n" ); document.write( "---
\n" ); document.write( "Ans: (-16,8)
\n" ); document.write( "==================================
\n" ); document.write( "
\n" ); document.write( "3.)
\n" ); document.write( "2x-3y=-15
\n" ); document.write( "y=x-2
\n" ); document.write( "---
\n" ); document.write( "Substitute for \"y\" and solve for \"x\":
\n" ); document.write( "=========================================\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "4.)
\n" ); document.write( "2x-3y=-15
\n" ); document.write( "x=4y
\n" ); document.write( "---
\n" ); document.write( "Substitute for \"x\" and solve for \"y\":
\n" ); document.write( "==========================================
\n" ); document.write( " I'll leave the rest to you.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "==========================================
\n" ); document.write( "5.)x+y=14
\n" ); document.write( "x=6y
\n" ); document.write( "6.)y=x-2
\n" ); document.write( "7y-4x=10
\n" ); document.write( "
\n" ); document.write( "
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