7.64=2*3.14*R

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Solution for 7.64=2*3.14*R equation: 


Simplifying
7.64 = 2 * 3.14R

Multiply 2 * 3.14
7.64 = 6.28R

Solving
7.64 = 6.28R

Solving for variable 'R'.

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

Add '-6.28R' to each side of the equation.
7.64 + -6.28R = 6.28R + -6.28R

Combine like terms: 6.28R + -6.28R = 0.00
7.64 + -6.28R = 0.00

Add '-7.64' to each side of the equation.
7.64 + -7.64 + -6.28R = 0.00 + -7.64

Combine like terms: 7.64 + -7.64 = 0.00
0.00 + -6.28R = 0.00 + -7.64
-6.28R = 0.00 + -7.64

Combine like terms: 0.00 + -7.64 = -7.64
-6.28R = -7.64

Divide each side by '-6.28'.
R = 1.21656051

Simplifying
R = 1.21656051

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