jacobp0712
16.12.2020 •
Mathematics
7y-(9+4y)= -3
y=?
Rest in peace 999
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Ответ:
y = 2
Step-by-step explanation:
Given
7y - (9 + 4y) = - 3 ← distribute parenthesis by - 1
7y - 9 - 4y = - 3 , that is
3y - 9 = - 3 ( add 9 to both sides )
3y = 6 ( divide both sides by 3 )
y = 2
Ответ:
8.94
Step-by-step explanation: