Question 939374
Summer is coming to a close in Alaska, and the temperatures are falling.
 The temperature in Fairbanks is -2 times the temperature in Barrow.
 The temperature in Barrow is 6 degrees more than -2 times the temperature in Fairbanks.
 What are the temperatures in Fairbanks and Barrow?
:
let f = Fairbanks temp;
let b = Barrow's temp
:
Write an equation for each statement
:
"The temperature in Fairbanks is -2 times the temperature in Barrow."
f = -2b
;
 The temperature in Barrow is 6 degrees more than -2 times the temperature in Fairbanks.
b = -2f + 6
replace f with -2b (from the 1st statement)
b = -2(-2b) + 6
b = +4b + 6
-6 = 4b - b
-6 = 3b
b = -6/3
b = -2 degrees at Point Barrow
then
f = -2(-2)
f = +4 degrees in Fairbanks