75.36=3.14*2r

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Solution for 75.36=3.14*2r equation: 


Simplifying
75.36 = 3.14 * 2r

Multiply 3.14 * 2
75.36 = 6.28r

Solving
75.36 = 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.
75.36 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
75.36 + -6.28r = 0.00

Add '-75.36' to each side of the equation.
75.36 + -75.36 + -6.28r = 0.00 + -75.36

Combine like terms: 75.36 + -75.36 = 0.00
0.00 + -6.28r = 0.00 + -75.36
-6.28r = 0.00 + -75.36

Combine like terms: 0.00 + -75.36 = -75.36
-6.28r = -75.36

Divide each side by '-6.28'.
r = 12

Simplifying
r = 12

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