120(3.14)=2(3.14)(20)(2r)

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Solution for 120(3.14)=2(3.14)(20)(2r) equation: 


Simplifying
120(3.14) = 2(3.14)(20)(2r)

Multiply 120 * 3.14
376.8 = 2(3.14)(20)(2r)

Remove parenthesis around (2r)
376.8 = 2 * 3.14 * 20 * 2r

Multiply 2 * 3.14
376.8 = 6.28 * 20 * 2r

Multiply 6.28 * 20
376.8 = 125.6 * 2r

Multiply 125.6 * 2
376.8 = 251.2r

Solving
376.8 = 251.2r

Solving for variable 'r'.

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

Add '-251.2r' to each side of the equation.
376.8 + -251.2r = 251.2r + -251.2r

Combine like terms: 251.2r + -251.2r = 0.0
376.8 + -251.2r = 0.0

Add '-376.8' to each side of the equation.
376.8 + -376.8 + -251.2r = 0.0 + -376.8

Combine like terms: 376.8 + -376.8 = 0.0
0.0 + -251.2r = 0.0 + -376.8
-251.2r = 0.0 + -376.8

Combine like terms: 0.0 + -376.8 = -376.8
-251.2r = -376.8

Divide each side by '-251.2'.
r = 1.5

Simplifying
r = 1.5

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