FIFTY POINTS! PLEASE HURRY! ASAP!

A biologist is comparing the growth of a population of flies per week to the number of flies a bullfrog will consume per week. She has devised an equation to solve for which day (x) the bullfrog would be able to eat the entire population.

The equation is 2^x = 3x-1


Explain to the biologist how she can solve this on a graph using a system of equations.

Note that this question is an essay question.

You must solve this by using system of equation

THAT'S WHY IT WORTHS LOTS OF POINTS!