document.write( "Question 662280: Solve the system by the substitution method\r
\n" ); document.write( "\n" ); document.write( "4x + y = 25
\n" ); document.write( "3x + 4y= 22\r
\n" ); document.write( "\n" ); document.write( "the answer the teacher got was 5,10
\n" ); document.write( "but I can not figure out how to get there. \n" ); document.write( "

Algebra.Com's Answer #412076 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"4x+%2B+y+=+25\"$ ........1
\n" ); document.write( " $\"3x+%2B+4y=+22\"$ .........2
\n" ); document.write( "_______________________________\r
\n" ); document.write( "\n" ); document.write( " $\"4x+%2B+y+=+25\"$ ........1..solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y+=+25-4x\"$ .........substitute in 2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"3x+%2B+4%2825-4x%29=+22\"$ .........2..solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"3x+%2B+100-16x=+22\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"+100-13x=+22\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"+100-22=+13x\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"+78=+13x\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"+78%2F13=+x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"++highlight%28x=6%29\"$ \r
\n" ); document.write( "\n" ); document.write( "now find $\"y\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"y+=+25-4x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y+=+25-4%2A6\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y+=+25-24\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y+=1%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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