7.72=2(3.14)(r)

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Solution for 7.72=2(3.14)(r) equation:


Simplifying
7.72 = 2(3.14)(r)

Multiply 2 * 3.14
7.72 = 6.28r

Solving
7.72 = 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.
7.72 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
7.72 + -6.28r = 0.00

Add '-7.72' to each side of the equation.
7.72 + -7.72 + -6.28r = 0.00 + -7.72

Combine like terms: 7.72 + -7.72 = 0.00
0.00 + -6.28r = 0.00 + -7.72
-6.28r = 0.00 + -7.72

Combine like terms: 0.00 + -7.72 = -7.72
-6.28r = -7.72

Divide each side by '-6.28'.
r = 1.229299363

Simplifying
r = 1.229299363

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