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A mirror should be centered on a wall. The mirror is 4 feet wide and the wall is 20 feet wide. Which equation helps determine the distance x on each side of the mirror?

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Samawati

Answer:

A).  x + 4 + x = 20

Multiple-choices

A).  x + 4 + x = 20

B).  4 + x + 4 = 20

C).  x = 20 + 4 + 4

D).  4 = 20 + x + x

Explanation:

The mirror will be in the middle of a wall which is 20 feet wide.

If the mirror is 4 feet, then 4 will be in the middle.

X will be on either side of the 4feet mirror.

Therefore:

x + 4 + x =20

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