document.write( "Question 154933: How do you figure this out when y is isolated on both equations:
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document.write( "y=3x+1
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document.write( "y=6x-1\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #114068 by orca(409)![]() ![]() ![]() You can put this solution on YOUR website! The easiest way to solve this system of equations is: \n" ); document.write( "As y is equal to both 3x + 1 and 6x - 1, so \n" ); document.write( "6x - 1 = 3x + 1 \n" ); document.write( "Solving it for x, we have \n" ); document.write( "3x = 2 \n" ); document.write( "so x = 2/3 \n" ); document.write( "Substituting x = 2/3 into y = 3x + 1, we have \n" ); document.write( "y = 3*(2/3) + 1 = 3 \n" ); document.write( "************************************************* \n" ); document.write( "ALTERNATIVE SOLUTION: \n" ); document.write( "Change the system into standard form. \n" ); document.write( "-3x + y = 1 \n" ); document.write( "-6x + y = -1 \n" ); document.write( "then solve it.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |