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alex41 [277]
3 years ago
13

For what value of x is the figure a rectangle?

Mathematics
1 answer:
Anna [14]3 years ago
6 0

Step-by-step explanation:

step 1. 4x + 27 + 3x = 90 (definition of a rectangle)

step 2. 7x = 63 (collect like terms. subtract 27 from both sides)

step 3. x = 9 (divide both sides by 7)

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