5-2n+n=7 i wanna see if this realy works

5-2n+n=7

Subtract 5 both sides

-2n +n=7-5

-n=2

Divide -1 on both sides

N= 2/-1

Solve

N = -2

I think the answer is n=4. I'm not learning this yet, but here is how I got my

5-2n = 3+n=7

7-3=4n

Hope it helps! :)

both triangles are similar because 2 is just smaller than the big one 1 is similar because they are facing different way's but are similar to each other

step-by-step explanation: