document.write( "Question 1152275: For a certain year, the combined revenue of Nintendo and Sony was $54 billion. If that year the revenue for Sony was $12 billion more than the revenue for Nintendo, how much was the revenue for Nintendo? \n" ); document.write( "
Algebra.Com's Answer #774252 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+x+\" = the revenue for Nintendo
\n" ); document.write( "\"+x+%2B+12+\" = the revenue for Sony
\n" ); document.write( "--------------------------------------------
\n" ); document.write( "\"+x+%2B+%28+x+%2B+12+%29+=+54+\"
\n" ); document.write( "\"+2x+%2B+12+=+54+\"
\n" ); document.write( "\"+2x+=+42+\"
\n" ); document.write( "\"+x+=+21+\"
\n" ); document.write( "Nintendo's revenue was $21 billion
\n" ); document.write( "-----------------------------------------
\n" ); document.write( "check:
\n" ); document.write( "\"+x+=+21+\"
\n" ); document.write( "\"+x+%2B+12+=33+\"
\n" ); document.write( "\"+x+%2B+%28+x+%2B+12+%29+=+54+\"
\n" ); document.write( "\"+21+%2B+33+=+54+\"
\n" ); document.write( "\"+54+=+54+\"
\n" ); document.write( "OK
\n" ); document.write( "
\n" );