brevancci
05.06.2021 •
Mathematics
(2a divided by 7) - (a-4)
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Ответ:
a=28/5 or 5.6
Step-by-step explanation:
2a/7=a-4
Multiple both sides of the equation by 7
2a=7a-28
Subtract 7a from both side
2a-7a=-28
Like Term
-5a=-26
Divide -5 from both side
a= 5.6
Ответ:
Yes
Step-by-step explanation:
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