Respostas

2014-02-22T17:15:28-03:00
3*(x-2)=4*(3-x) \\ 3x-6=12-4x \\ 4x+3x=12 +6\\  7x=18 \\ x=18/7 \\

Substituindo em x=18/7
3*(18/7-2)=4*(3-18/7) \\ 3*(18-14)/=4*(21-18)/7 \\ 3*(4/7)=4*(3/7) \\ 12/7=12/7