235=2(3.14)(r)(7)

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Solution for 235=2(3.14)(r)(7) equation:


Simplifying
235 = 2(3.14)(r)(7)

Reorder the terms for easier multiplication:
235 = 2 * 3.14 * 7r

Multiply 2 * 3.14
235 = 6.28 * 7r

Multiply 6.28 * 7
235 = 43.96r

Solving
235 = 43.96r

Solving for variable 'r'.

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

Add '-43.96r' to each side of the equation.
235 + -43.96r = 43.96r + -43.96r

Combine like terms: 43.96r + -43.96r = 0.00
235 + -43.96r = 0.00

Add '-235' to each side of the equation.
235 + -235 + -43.96r = 0.00 + -235

Combine like terms: 235 + -235 = 0
0 + -43.96r = 0.00 + -235
-43.96r = 0.00 + -235

Combine like terms: 0.00 + -235 = -235
-43.96r = -235

Divide each side by '-43.96'.
r = 5.345768881

Simplifying
r = 5.345768881

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