document.write( "Question 565692: How do I solve this?\r
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document.write( "y = 2x - 4
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document.write( "y = -2x + 4\r
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document.write( "Daren Smith \n" );
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Algebra.Com's Answer #365921 by Leaf W.(135)![]() ![]() You can put this solution on YOUR website! Daren, \n" ); document.write( "1. Put the two equations in the same format. In this case, you can skip this step because it is already done. \n" ); document.write( "2. Make it so that, if the equations were added together, one of the variables have opposite coefficients and would cancel out. Since 2x and -2x already fulfill these requirements (if added together, the sum is 0), you can skip this step as well. \n" ); document.write( "3. Add the two equations. \n" ); document.write( "y = 2x - 4 \n" ); document.write( "y = -2x + 4 \n" ); document.write( "2y = 0 \n" ); document.write( "4. Solve for the variable that is not canceled out (in this case, y). \n" ); document.write( "2y = 0 \n" ); document.write( "Divide both sides by 2: y = 0 \n" ); document.write( "5. Solve for the other variable by plugging this value into either one of the original equations. \n" ); document.write( "y = 2x - 4 \n" ); document.write( "0 = 2x - 4 \n" ); document.write( "Add 4 to both sides of the equation: 4 = 2x \n" ); document.write( "Divide everything by 2: 2 = x \n" ); document.write( "6. Plug these values for x and y into coordinate form (x,y): (2,0). THEREFORE, YOUR ANSWER IS (2,0). \n" ); document.write( "Hope I helped! Good luck! =) \n" ); document.write( " |