document.write( "Question 117130: Solve by using substitution or elimination:
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document.write( "x=3y+11
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document.write( "2x+5y=0 \n" );
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Algebra.Com's Answer #86152 by misscrt(37)![]() ![]() ![]() You can put this solution on YOUR website! Solve by using substitution or elimination: \n" ); document.write( "x=3y+11 (Eqn 1) \n" ); document.write( "2x+5y=0 (Eqn 2)\r \n" ); document.write( "\n" ); document.write( "_______________________________________________________\r \n" ); document.write( "\n" ); document.write( "Solve by substitution(substitute expression for x found in Eqn 1 into Eqn 2:\r \n" ); document.write( "\n" ); document.write( "2(3y+11)+5y=0\r \n" ); document.write( "\n" ); document.write( "Use distributive property to clear the parentheses with multiplication:\r \n" ); document.write( "\n" ); document.write( "2*3y + 2*11 + 5y = 0\r \n" ); document.write( "\n" ); document.write( "6y+22+5y=0\r \n" ); document.write( "\n" ); document.write( "Combine like terms:\r \n" ); document.write( "\n" ); document.write( "6y+5y +22=0\r \n" ); document.write( "\n" ); document.write( "11y+22=0\r \n" ); document.write( "\n" ); document.write( "Subtract 22 from both sides to isolate the y-term:\r \n" ); document.write( "\n" ); document.write( "11y+22-22=0-22\r \n" ); document.write( "\n" ); document.write( "11y = -22\r \n" ); document.write( "\n" ); document.write( "Divide both sides by 11 to get y:\r \n" ); document.write( "\n" ); document.write( "11y/11=-22/11\r \n" ); document.write( "\n" ); document.write( "y = -2\r \n" ); document.write( "\n" ); document.write( "Find x value by plugging in y into Eqn 1:\r \n" ); document.write( "\n" ); document.write( "x = 3(-2) + 11\r \n" ); document.write( "\n" ); document.write( "x = -6 + 11\r \n" ); document.write( "\n" ); document.write( "x = 5\r \n" ); document.write( "\n" ); document.write( "Hope that helps.\r \n" ); document.write( "\n" ); document.write( "Greetings, \n" ); document.write( "misscrt \n" ); document.write( " |