document.write( "Question 119906: Please help me solve this 6-5(3x-3)=-54 I am just brain dead this morning and am not sure about this. I am coming up with no solution but would appreciate a second opinion. Thanks so much for your help. \n" ); document.write( "
Algebra.Com's Answer #87878 by bucky(2189) ![]() You can put this solution on YOUR website! Given: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "First do the distributed multiplication of -5 times each of the terms inside the parentheses. \n" ); document.write( ". \n" ); document.write( "When you multiply -5 times 3x you get -15x. And when you multiply -5 times -3 you get +15. \n" ); document.write( "Substituting these multiplications into the given problem converts it to: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "On the left side combine the constants +6 and +15 to get +21 which reduces the equation to: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Get rid of the +21 on the left side by adding -21 to both sides. (This is the same as \n" ); document.write( "subtracting 21 from both sides). When you do this addition, on the left side the +21 and -21 \n" ); document.write( "combine to cancel out. On the left side the -54 and -21 combine to -75. So the resulting \n" ); document.write( "equation is: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "You can get rid of the minus signs by multiplying both sides of the equation by minus 1 to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Finally, solve for x by dividing both sides of this equation by 15 to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Now that you know that x = 5, you can check the problem by starting with: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Then substitute 5 for x to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Multiply the 3 times 5 to get: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Within the parentheses the 15 and -3 combine to 12: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "The -5 times 12 results in -60 and this reduces the equation to: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "The left side terms combine to -54 so the equation further reduces to: \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "and this, of course, is true. So our answer checks, and x = 5 is the answer. \n" ); document.write( ". \n" ); document.write( "Hope this helps cure you of your case of \"morning brain dead.\" Press on ... \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |