document.write( "Question 1007601: what is the measure of angle C in a triangle with angle A is 2x angle B is 3x-9 and angle C is 2x which makes the equation 2x+3x-9+2x=180 degrees i know to add like terms which gives you 7x-9=180 add nine to both sides and you get 7x=189 then divide 7/189 which comes out to 27 then solve for angle C using 2x=__degrees thats the part where I get lost I don't know what to do with the 27 and 2x can someone help me so I can help my daughter \n" ); document.write( "
Algebra.Com's Answer #623489 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "So far, so good.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then, .... what?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "How do you UNDO the factor of 7 on the x?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You are given that measure of angle C is 2x and you now have x=27. \n" ); document.write( "This should be clear and obvious. 2x=x+x. \n" ); document.write( " |