55.96=3.14(r)(8.5)

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Solution for 55.96=3.14(r)(8.5) equation: 


Simplifying
55.96 = 3.14(r)(8.5)

Reorder the terms for easier multiplication:
55.96 = 3.14 * 8.5r

Multiply 3.14 * 8.5
55.96 = 26.69r

Solving
55.96 = 26.69r

Solving for variable 'r'.

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

Add '-26.69r' to each side of the equation.
55.96 + -26.69r = 26.69r + -26.69r

Combine like terms: 26.69r + -26.69r = 0.00
55.96 + -26.69r = 0.00

Add '-55.96' to each side of the equation.
55.96 + -55.96 + -26.69r = 0.00 + -55.96

Combine like terms: 55.96 + -55.96 = 0.00
0.00 + -26.69r = 0.00 + -55.96
-26.69r = 0.00 + -55.96

Combine like terms: 0.00 + -55.96 = -55.96
-26.69r = -55.96

Divide each side by '-26.69'.
r = 2.096665418

Simplifying
r = 2.096665418

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