Question

How do i solve this?: 7-12÷4+2x7

Answer 1

First you divide and multiply and then you add and subtract
Please tell me how to set up an inequality for this question and how to solve it:

At a video store you have 2 options for renting movies, you can pay $4 per movie or you can pay 10 dollar membership fee and then only pay 1.50/movie. After how many movie rentals will the membership price be less than the cost of renting movies without the membership?

Answer 2

You need to use PEMDAS. You don't have parentheses or exponents so you don't need to worry about that. So you multiply 2*7. That equals 14 now your problem is...

7-12/4+14.

Next you do division.

So 12/4 is 3.

7-3+14 equals.

Now you add 3 and 14.

7-17=

Now you subtract and get your answer.
-10 is your answer.