9(b + 5) – 4b what is this equivalent expression? =

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Nsh asked Mar 27, 2023

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9(b + 5) – 4b
what is this equivalent expression?
=

Mathematics
high-school

Nsh asked Mar 27, 2023

by Nsh

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Answer:

$9(b + 5) - 4b = \\ 9b + 45 - 4b = \\ 5b + 45 = b + 9$

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Alex Char answered Mar 29, 2023

by Alex Char

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23 votes

$\looparrowright \sf9(b + 5) - 4b$

$\\ \\$

$\looparrowright \sf9b + 45 = - 4b$

$\\ \\$

$\looparrowright \sf9b + 4b + 45 = 0$

$\\ \\$

$\looparrowright \sf5b + 45 = 0$

$\\ \\$

$\looparrowright \sf5b = - 45$

$\\ \\$

$\looparrowright \sf \: b = - 45 / 5$

$\\ \\$

$\looparrowright \sf \: b = -9$

Virgiliogm answered Apr 3, 2023

by Virgiliogm

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