document.write( "Question 477990: Please help me solve this equation: 15-3x=12-2x\r
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document.write( "Thank-you so much! I am revising for a test and preferably need it to be done step by step! \n" );
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Algebra.Com's Answer #327519 by Scorinitron(19)![]() ![]() You can put this solution on YOUR website! ____________________________________________________\r \n" ); document.write( "\n" ); document.write( "Ok I'll explain everything I did step by step \n" ); document.write( "Here's your Problem\r \n" ); document.write( "\n" ); document.write( "15-3x=12-2x\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since -2x contains the variable to solve for, move it to the left-hand side of the equation by adding 2x to both sides. \n" ); document.write( "-3x+15+2x=12\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since -3x and 2x are like terms, subtract 2x from -3x to get -x. \n" ); document.write( "-x+15=12\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since 15 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 15 from both sides. \n" ); document.write( "-x=-15+12\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add 12 to -15 to get -3. \n" ); document.write( "-x=-3\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply each term in the equation by -1.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-x*-1=-3*-1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply -x by -1 to get x.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=-3*-1\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply -3 by -1 to get 3.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=3\r \n" ); document.write( "\n" ); document.write( "Your Answer is 3\r \n" ); document.write( "\n" ); document.write( "NOW CHECK YOUR ANSWER: \n" ); document.write( "__________________________\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now that you have your answer you have to check your problem to see if it's correct. You accomplish this by replacing the variable x with what you got which was 3 so go back to your original problem\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15-3x=12-2x\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and you replace x with 3 since we figured out x=3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15-3*(3)=12-2*(3)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply -3 by each term inside the parentheses.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15-9=12-2*(3)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Subtract 9 from 15 to get 6.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6=12-2*(3)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply -2 by each term inside the parentheses.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6=12-6\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Subtract 6 from 12 to get 6.\r \n" ); document.write( "\n" ); document.write( "6=6\r \n" ); document.write( "\n" ); document.write( "Since 6=6, the equation will always be true.\r \n" ); document.write( "\n" ); document.write( "So x=3 which means were correct! \n" ); document.write( " |