SOLUTION: which expression represents the sum of 7/a-1 + 3/2a-2
a. 17/2(a-1)
b. 10/2a-2
c. 17/2(a-1)^2
d. 10/3a-3
when i added this up on my calculator it gave me the same thing. i do
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Question 91936: which expression represents the sum of 7/a-1 + 3/2a-2
a. 17/2(a-1)
b. 10/2a-2
c. 17/2(a-1)^2
d. 10/3a-3
when i added this up on my calculator it gave me the same thing. i dont understand how to work this out. any help would be appreciated.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the sum of 7/a-1 + 3/2a-2
------------------------
The fractions must have the same denominator.
----------------------
[7*2/2(a-1)] + [3/2(a-1)]
= [14+3]/[2(a-1)]
= [15/2(a-1)]
Cheers,
Stan H.
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