Divide by e^2x to get 6 = 7e^2x. Then take the natural log of both sides so you now have ln6 = ln7e^2x. Use laws of logs to make this ln6=2xln7e. Rearrange for x to get x=(ln6)/(2ln7e) and plug it into your calculator.

then you figure out what you divide 56 by to get 4. which is 14. then you divide 42 by the same number 14.
Answer:
Liam has 3 whole pizza along with 1/3 of a pizza.
In decimal, Liam has 3.33 of Pizza.
Step-by-step explanation:
Given
Quantity of pizza with Martin = 5/6 of a pizza
Pizza with Liam = 4*Quantity of pizza with Martin
Pizza with Liam = 4*5/6 of a pizza
Pizza with Liam = 10/3 of a pizza = 3 1/3 of pizza.
Thus, Liam has 3 whole pizza along with 1/3 of a pizza.
In decimal Liam has 3.33 of Pizza.
6x-18
you pretty much h just multiply both the first part of the parentheses by the number outside, then the second :)