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15-10-2020
Mathematics

contestada

What is the value of a in the equation 5a-10b=45, when b =3?

3
15
21
39

Respuesta :

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16-10-2020

Answer: a = 15

Step-by-step explanation:

5a-10b=45

5a-10(3)=45

5a - 30 = 45

5a = 75

a = 15

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