7.85=2(3.14+R)

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Solution for 7.85=2(3.14+R) equation: 


Simplifying
7.85 = 2(3.14 + R)
7.85 = (3.14 * 2 + R * 2)
7.85 = (6.28 + 2R)

Solving
7.85 = 6.28 + 2R

Solving for variable 'R'.

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

Add '-2R' to each side of the equation.
7.85 + -2R = 6.28 + 2R + -2R

Combine like terms: 2R + -2R = 0
7.85 + -2R = 6.28 + 0
7.85 + -2R = 6.28

Add '-7.85' to each side of the equation.
7.85 + -7.85 + -2R = 6.28 + -7.85

Combine like terms: 7.85 + -7.85 = 0.00
0.00 + -2R = 6.28 + -7.85
-2R = 6.28 + -7.85

Combine like terms: 6.28 + -7.85 = -1.57
-2R = -1.57

Divide each side by '-2'.
R = 0.785

Simplifying
R = 0.785

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