3y - 2 = y + 4

what is the value of y? i got 3 from a calculator but i'm having trouble understanding why. could anyone briefly explain how you get this answer?

my attempt is:
3y - 2 = y + 4
+2 +2
3y = y + 6
here is where i get stuck. if you divide, the y value goes away. but you cannot subtract because there is nothing to subtract could someone explain my next step and/or where i am going wrong?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet