You can put this solution on YOUR website! ............1 ............2 .............3
_________________
............1 ............2..multiply by
___________________
............1 ............2
___________________
............1 ............2.....add both
______________________
................1a
now take these two:
............2....multiply by .............3
____________________.and add
............1b
use 1a and 1b to calculate ................1a ............1b
________________
=>
now find
and, find ............2
