how do you find the missing number/what is the missing number?

Solving a Single Variable Equation :

Solve  :    3x+1 = 0

Subtract  1  from both sides of the equation :

                3x = -1

Divide both sides of the equation by 3:

         x = -1/3 = -0.333

One solution was found :

         x = -1/3 = -0.333

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: