You would have to make common denominators
consider a/b,c/d in Q
then a/b - c/d = ad/db - cb/bd = (ad-cb)/db for all a,b,c,d in R, exclude b,d=0
i.e. 1/2 - 1/4
=4/8 - 2/8 =(4-2)/8=2/8 =1/4
Answer:
x=-3
y=2
Step-by-step explanation:
To solve this problem you can use the elimination method:
- Multiply the second equation by -6:

- Add both equations:

- Substitute the value of x into one of the original equations and solve for y:

I think the answer is -7/4.
Answer:
0.29p + 1.59 = 5.07 where p represents the number of pens
Step-by-step explanation:
Answer: 265720.5
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.
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(81^3) / 2 = 265720.5