Question

I am currently doing a question in which the equation is dN1/dt= -N1 + 0.1N1*N2

However, I am able to follow until the step of -N1(1 - 0.1N2)

after that I'm not able to follow to the step of (-1)N1 (1-N2/10)

Can someone please explain to me how we went from the second step to the third step. That is the only part that has me confused.

Answer 1

-N1(1 - 0.1N2) Hmmmm.
-N1 is the same as -1*N1 or -1(N1)
-.1 is the same as 1/10
-1(N1)(1-N2/10)