document.write( "Question 255138: Solve the system of equations using the substitution method\r
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document.write( " 1. x+y=4 y=3x \n" );
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Algebra.Com's Answer #187447 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! substitute 3x for y in x+y=4\r \n" ); document.write( "\n" ); document.write( "x+3x=4 \n" ); document.write( "combine x and 3x \n" ); document.write( "divide by 4 \n" ); document.write( " \n" ); document.write( " |