Assume that the other number is y.
we know that the addition of both number is -9
this means that:
x+y=-9
reorder this equation to seperate the y variable:
y=-9-x
Skier one will have more potential energy
42/1/7 u would do the reciprocal for 1/7 so then it would 42•7/1 and then u would get 294
