Assuming this is the equation you want to operate on:



Before final operation we have to assume that x is not equal to 0. :)
Step-by-step explanation:
x=-10 is ur answer try it!
Answer:
78
Step-by-step explanation:
You take the original total: 60, and multiply it by 30 to get 1,800. You then divide 1,800 by 100 to get 18. 18 is your 30%. Now, you add the 30% to 60 getting your total number of ducks: 78.
The equation version:

It is just proportions.
We divide both sides by 7 which makes n alone. Which is n=m/7.
The factored form for this question is (5x-1)(x-5)