document.write( "Question 636810: I need help with solving x + y = 51
\n" ); document.write( "x = # of cell phone model A4
\n" ); document.write( "y = # of smartphone Z20\r
\n" ); document.write( "\n" ); document.write( "then $35x + $50y = $2220\r
\n" ); document.write( "\n" ); document.write( "using substitution, elimination or matrices
\n" ); document.write( "then graph \n" ); document.write( "

Algebra.Com's Answer #401234 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "  x + y = 51      ||Multiply 1st by 35 and subtracting from 2nd EQ to eliminate x
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document.write( "35x + 50y = 2220
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document.write( "      15y = 435
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document.write( "        y = 29   and x = 22 \n" );
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