document.write( "Question 665544: i need to use the substitution method to solve for this: \r
\n" ); document.write( "\n" ); document.write( "x+4y=19
\n" ); document.write( "-4x+3y=38\r
\n" ); document.write( "\n" ); document.write( "i always mix up the substitution and elimination methods, what i got so far was \r
\n" ); document.write( "\n" ); document.write( "-4(19-4y)+3y=38 \n" ); document.write( "

Algebra.Com's Answer #413912 by lynnlo(4176) $\"\"$ $\"About$

You can put this solution on YOUR website!
EXAMPLE: YOU WILL THEN UNDERSTAND YOUR PROBLEMS BETTER
\n" ); document.write( " 2X+3Y=5
\n" ); document.write( " X+Y=5
\n" ); document.write( "STEP(1)=======SOLVE ONE OF THE EQUATIONS X= OR Y=
\n" ); document.write( " I SOLVED THE SECOND EQUATION
\n" ); document.write( " X+Y=5
\n" ); document.write( " Y=5-X
\n" ); document.write( "STEP(2)=======SUBSTITUTE THE SOLUTION IN STEP 1 INTO THE SECOND EQUATION
\n" ); document.write( " 2X+3Y=5
\n" ); document.write( " 2X+3(5-X)=5
\n" ); document.write( "STEP(3)=======SOLVE EQUATION
\n" ); document.write( " 2X+3(5-X)=5
\n" ); document.write( " 2X+15-3X=5
\n" ); document.write( " -X+15=5
\n" ); document.write( " -X=5-15
\n" ); document.write( " X=10
\n" ); document.write( "STEP(4)===========
\n" ); document.write( "SOLVE THE FIRST VARIABLE
\n" ); document.write( "Y=5-X
\n" ); document.write( "Y=5-10
\n" ); document.write( "Y=-5
\n" ); document.write( "X=10,Y=-5
\n" ); document.write( "I HOPE THIS EXAMPLE REALLY HELP WITH YOUR WORK \n" ); document.write( "

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