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3 years ago

Sole and check 5y + 7 = 14y + 7

2 answers:

8 0

$5y + 7 = 14y + 7 \\ \\ 5y = 14y \ / \ cancel \ 7\\ \\ 5y - 14y = 0 \ / \ terms \ to \ one \ side\\ \\ -9y = 0 \ / \ simplify \\ \\ y = 0 \ / \ divide \ by \ -9 \\ \\ CHECK \\ \\ 5y + 7 = 14y + 7 \ / \ let \ y = 0 \\ \\ 5 \times 0 + 7 = 14 \times 0 + 7 \\ \\ Answer: \fbox {y = 0}$

MA_775_DIABLO [31]3 years ago

7 0

5y + 7=14y+7
-5 -5
7=9y+7
-7 -7
0 9y
0/9=0
and i dont know if its right and i dont know how to check it

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