You're welcome! Even though my 2021 study guide covers a majority of the topics that show up on the ASVAB, there are still some things I can add to it. ¯\_(ツ)_/¯
hey i dont understand why in number 8 you decided to subtracts -1 first at both sides instead of multiplying by the 1/4. is there a specific order to isolating the absolute value?
When you work out problems, you generally follow the order of operations: PEMDAS, which means you do what's in parenthesis first, followed by exponents, then multiplication and division as they appear in the expression from left to right, and then addition and subtraction as they appear in the expression from left to right. When you solve an equation for a specific variable, such as x, you follow the order of operations, albeit in reverse order: you do addition and subtraction first, then multiplication and division, then exponents, and then parenthesis. For question eight, since we solving for specific variable, you had to do subtraction before division.
So when there is a number behind the absolute value, like in example problem number 7 and 8, how do you know when to divide that number and when to multiply it?
So, you perform the opposite operation to get rid of it. It works the same way, even if those absolute value bars were parenthesis instead. For example: Solve for x 5(x + 1) = 10
@@GrammarHero Ok, I see what you mean. The only thing is that in the examples you worked on (such as the ones mentioned on the original comment: 7 and 8) there is not parentheses or bracket that differentiates it. Just wanna know if it will be like this on the ASVAB and how to work around it.
I've been preparing for the test for over a year and a half, and the past month has been difficult. Having to re-learn math didn't make me feel any better 😂, but up until this point I just didn't know where/how to start and I would just get overwhelmed, but I'm really locked in now because of your videos.
