The equation $4 x + 7 = 2 x + 9$ is modeled as shown in the figure.
Which value of $x$ would make the equation true?

1

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2

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8

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16

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Solution

The correct option is A $1$
Given $4 x + 7 = 2 x + 9$
$4 x - 2 x = 9 - 7$
$2 x = 2$
$x = 1$

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