What is the answer to:
a+4 ≥ 2a
It asks you to isolate the variable.
My answer booklet says the correct answer is
4 ≥ a.
I do not know how they reached this conclusion. My thought process told me to divide a+4 by a and then divide 2a by a. That left me with 4≥2.
What am I doing wrong? How do i get the correct answer of
4 ≥ a. My answer book does not explain it.
Your help is greatly appreciated!!