Answer:
The first problem the answer is x= -25/4
Step-by-step explanation:
Answer:
(a) 0
(b) -3/26
Step-by-step explanation:
(a)
We essentially plug 1 in for x and 2 in for y.
Our expression is
, so making the correct substitutions yields:

So, the answer for part (a) is 0.
(b)
Again, we're now plugging in 1 for x and 5 for y:

So, the answer for part (b) is -3/26.
The fraction is equivalent to 1/2 since you can simplify 4/8 as (4/4)/(8/4) = 1/2.
Answer:
3216.9
Step-by-step explanation:
Answer:
-4 and -3
Step-by-step explanation:
-4+-3=-7