38=2(3.14)r

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Solution for 38=2(3.14)r equation:


Simplifying
38 = 2(3.14) * r

Multiply 2 * 3.14
38 = 6.28r

Solving
38 = 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.
38 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
38 + -6.28r = 0.00

Add '-38' to each side of the equation.
38 + -38 + -6.28r = 0.00 + -38

Combine like terms: 38 + -38 = 0
0 + -6.28r = 0.00 + -38
-6.28r = 0.00 + -38

Combine like terms: 0.00 + -38 = -38
-6.28r = -38

Divide each side by '-6.28'.
r = 6.050955414

Simplifying
r = 6.050955414

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