Inverse of f(x)=(x+1)/(2x+1) i know how to get the inverse if the bottom or top of the fraction have an x on their own, but i am not sure how to move y over when x is on both top and bottom, and guys : d

The sum of two numbers is 86, and their difference is 20. find the two numbers

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Which of the following three dimensional figures has a circle as it’s base