The length of a rectangle is 4 units shorter than half the width. If the length of the rectangle is 18 units, which equation can be used to find w, the width of the rectangle? 1…

Question

The length of a rectangle is 4 units shorter than half the width. If the length of the rectangle is 18 units, which equation can

be used to find w, the width of the rectangle?

`18 = (w)/(2) - 4`

`18 = 4 - (w)/(2)`

`18 - 4 = (w)/(2)`



`18 - (w)/(2) = 4`
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Answer 1

A or the top option

Explanation:

I used process of elimination

B simply does not work because in order for 4 to be subtracted by another number to equal 18, that number (width) would have to be negative

C also isn't correct since if it was solved out, we would add four to both sides, making the left side equal to w/2 + 4 which isn't what we want because the length is 4 shorter, not longer

D can be dealt with in the same way, by adding w/2 on both sides, making the left side 4 + w/2, the same as the previous option.