document.write( "Question 717745: the sum of of 4 times a number, and -2, is equal to the sum of 5 times a number, and -2. Find the number \n" ); document.write( "
Algebra.Com's Answer #440479 by jndarrell(58)![]() ![]() ![]() You can put this solution on YOUR website! The word \"Sum\" = addition. \n" ); document.write( "\"A number\" = the unknown, aka 'x'. \n" ); document.write( "\"Is equal to\" is =.\r \n" ); document.write( "\n" ); document.write( "Go piece by piece. I will set your equation exactly as it is worded as you read it. Follow along:\r \n" ); document.write( "\n" ); document.write( "4x + (-2) = 5x + (-2) \n" ); document.write( "Imagine there is a \"1\" infront of the parenthesis around the -2. A positive * a negative always = negative. So....\r \n" ); document.write( "\n" ); document.write( "4x-2=5x-2 \n" ); document.write( "Get x alone on one side of the equation. I am going to chose to subtract 4x from the 5x. Resulting in: \n" ); document.write( "-2 = x-2 \n" ); document.write( "X is still not alone. Now I will add the -2 to the other side, accomplishing x alone. \n" ); document.write( "0=x or x=0\r \n" ); document.write( "\n" ); document.write( "To check the answer, take the found value for x and plug it back into the original equation. Anything multiplied by 0 will equal 0. You are left with -2 =-2, which is true. \r \n" ); document.write( "\n" ); document.write( ":) \n" ); document.write( " |