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Answer:
In basic mathematics, pi is used to find the area and circumference of a circle. Pi is used to find area by multiplying the radius squared times pi. So, in trying to find the area of a circle with a radius of 3 centimeters, π32 = 28.27 cm.
Answer:

Step-by-step explanation:

Distribute 2 through the parentheses

Collect like terms

Move 16 to right hand side and change it's sign

Add the numbers: 6 and 16

Divide both sides by 2

Calculate

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