Answer:

Step-by-step explanation:
x-7y = -49
i) move x to the right-hand side and change its sign
-7y = -49-x
ii) change the signs on both sides of the equation
7y = 49+x
iii) divide both sides of the equation by 7


iv) use the commutative property to reorder the terms
* commutative property: a+b = b+a

Answer:
(1,4)
Step-by-step explanation:
Answer:
13: 30
Step-by-step explanation:
All you have to do is make sure that you put the ice skating fist because that is the one that the question mentioned first. Hope this helps :)
The answer is 1/6 x (25/3m^2n^2-1)