-so it’s saying 5/x is the same as 6/30. we have to find X by dividing. The answer to the division is 5. Now take your 5 and multiply it by the 5 in the fraction to get 25.
Yes because they both equal -15 because you actually turn -10+(-5) into a subtraction problem because if there's a + and -, you actually turn it into a minus and the answer is -15.