Как да помогнем?

warp10too

warp10too коментира, 17 февруари, 2015 20:34
Tell them to look at an equation as a balanced set of scales. Provided you do the same thing to the left and right scales you won't disturb the balance. You can add or subtract the same weight from...
warp10too коментира, 17 февруари, 2015 17:35
If you are talking Math I could probably help , other subjects a bit more iffy . We are all learning here . There is no shame in not having had ample opportunity to finish something . Khan Academy...