M + 20 = 11m - 6

can somebody show me how to solve this?

This ends up being:

-10m = -26

M= 2.6

Basically you’re doing basic algebra. You take the “11m” and subtract it to the positive (1) m. And you basically should see 1m-11m EQUALING -10m. Don’t let the negatives confuse you.

Then you take the 20 and subtract it to -6. It should look like: -6-20 = -26.

Then divide-10 to -26, then you should get 2.6. And yes positive!!

Hope this helped!

It’s b because vpt is the whole triangle and ptc isn’t