A number decreased by 12 is 24. (by looking at your question, we can see that 'decreased by 12' = subtract (-) 12)
We can write this as the equation n - 12 = 24, in which n = the number.
Now let's solve for n by using algebraic properties.
n - 12 = 24 n - 12 + 12 = 24 + 12 (add 12 to both sides to isolate n) n = 24 + 12 (the -12 and +12 cancel to 0 on the left side) n = 36 (simplify, add 24 and 12)
it is really cold so people will have to find food try to survive by hunting animals which is even more difficult also plants would barely get any water
