a=3.14(r*r)

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Solution for a=3.14(r*r) equation: 


Simplifying
a = 3.14(r * r)

Multiply r * r
a = 3.14(r2)

Solving
a = 3.14r2

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Simplifying
a = 3.14r2

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