Find the value of x (3x+6) (6x+3)

Ariel Gabizon asked Mar 17, 2023

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20 votes

Ariel Gabizon asked Mar 17, 2023

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28 votes

we have

$\begin{gathered} (3x+6)+(6x+3)=180 \\ 3x+6+6x+3=180 \\ 9x+9=180 \\ 9x+9-9=180-9 \\ 9x=171 \\ (9x)/(9)=(171)/(9) \\ x=19 \end{gathered}$

answer: B. 19

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