document.write( "Question 449983: IF x+y=4 y=x-8, what is the value of x? \n" ); document.write( "
Algebra.Com's Answer #309545 by Gogonati(855)\"\" \"About 
You can put this solution on YOUR website!
To find the value of x, substitute in the first equation y=x-8, and solve for x:\r
\n" ); document.write( "\n" ); document.write( "\"x%2Bx-8=4\"+>\"2x=12\"=>\"x=6\".
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