document.write( "Question 629684: David's gas tank is 1/6 full. After he buys 7 gallons of gas, it is 1/2 full. How many gallons can David's tank hold? \n" ); document.write( "
Algebra.Com's Answer #396426 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! x/6+7=x/2 \n" ); document.write( "multiply by 12 \n" ); document.write( "2x+84=6x \n" ); document.write( "84=4x \n" ); document.write( "21=x \n" ); document.write( "check \n" ); document.write( "21/6+7=21/2 \n" ); document.write( "10.5/3=10.5-7 \n" ); document.write( "10.5=3.5*3 \n" ); document.write( "ok\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |