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17-03-2020
Mathematics

contestada

Can you please help me on 6(a-7)=-7(a-7)

Respuesta :

22chung 22chung

17-03-2020

Answer:

a=7

Step-by-step explanation:

6a-42=-7a+49

(add 7a to 6a)

13a-42=49

(add 42 to 49)

13a=91

(divide 91 by 13)

a=7

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