document.write( "Question 132678This question is from textbook Connected Mathematics2
\n" ); document.write( ": I'm having a hard time understanding this system and I just need a break down of how to do this please.
\n" ); document.write( "The problem is: Solve the system by using substitution
\n" ); document.write( "3x = 4y = 9
\n" ); document.write( "y = x - 3
\n" ); document.write( "This is in Prentice Hall Connected Mathematics 2 Book Grade Eight \n" ); document.write( "
Algebra.Com's Answer #96956 by stanbon(75887)\"\" \"About 
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The problem is: Solve the system by using substitution
\n" ); document.write( "3x = 4y + 9
\n" ); document.write( "y = x - 3
\n" ); document.write( "------------
\n" ); document.write( "Substitute to solve for \"x\":
\n" ); document.write( "3x = 4(x-3) + 9
\n" ); document.write( "3x = 4x-12+9
\n" ); document.write( "3x = 4x-3
\n" ); document.write( "Subtract 3x from both sides: Add 3 to both sides:
\n" ); document.write( "x = 3
\n" ); document.write( "----------
\n" ); document.write( "Substitute to solve for \"Y\":
\n" ); document.write( "y = x-3
\n" ); document.write( "y = 3-3 = 0
\n" ); document.write( "---------------
\n" ); document.write( "Solution: (3,0)
\n" ); document.write( "====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
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