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05-05-2017
Mathematics

contestada

Simplify.

10/5b+4 + 6/2b-3

A. -10b-54/(5b+4)(2b-3)
B. 16/7b+1
C. 16/(5b+4)(2b-3)
D. 50b-6/(5b+4)(2b-3)

Please do not guess!

Respuesta :

Аноним Аноним

05-05-2017

the lowest common denominator will be (5b+4)2b-3) so this is at the bottom of the fraction.

multiplying both fractions in the question by this denominator gives

20b - 30 + 30b + 24

= 50b - 6 this is the numerator of the answer

The correct choice is D

Answer Link

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