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balandron [24]
3 years ago
10

Will give brainliest to whoever replies with the correct answer. (Question is in the image)

Mathematics
1 answer:
EastWind [94]3 years ago
5 0

Answer:x = 7

Step-by-step explanation:

Similar figures have sides that are proportional.  Setting up a proportion for the sides of the figures will help solve for 'x':

Cross-multiply:  3(x + 1) = 6(x - 3)

Distribute:  3x + 3 = 6x - 18

Combine like terms:  21 = 3x

Solve for 'x':  x = 7

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