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bezimeni [28]
3 years ago
13

Need some help (: thanks!

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

We know that w = 21 so:

(4x+z)(3x-w)=0\\\\(4x+z)(3x-21)=0\\\\3x-21=0\\\\3x=21\qquad|\div3\\\\\boxed{x=7}

Answer D) (7;0)

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Now we find the area of each rectangle.

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5 0
4 years ago
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