Which algebraic expression is equivalent below?5(3x+10)+5xA)70xB)20x+50C)20x-50D)20x+10

Nathan Smith asked Jan 28, 2023

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15 votes

Nathan Smith asked Jan 28, 2023

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7 votes

20x + 50 (option B)

Step-by-step explanation:
$5(3x\text{ + 10) + 5x}$

Expanding the parenthesis:

$5(3x)\text{ + 5(10) + 5x}$
$\begin{gathered} \text{simplifying:} \\ 15x\text{ + 50 + 5x} \end{gathered}$

collecting like terms:

$\begin{gathered} 15x\text{ + 5x + 50} \\ 20x\text{ + 50 (option B)} \end{gathered}$

Bhautik answered Feb 3, 2023

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