92.7=3.1+7(7.97+2.1r)

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Solution for 92.7=3.1+7(7.97+2.1r) equation: 


Simplifying
92.7 = 3.1 + 7(7.97 + 2.1r)
92.7 = 3.1 + (7.97 * 7 + 2.1r * 7)
92.7 = 3.1 + (55.79 + 14.7r)

Combine like terms: 3.1 + 55.79 = 58.89
92.7 = 58.89 + 14.7r

Solving
92.7 = 58.89 + 14.7r

Solving for variable 'r'.

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

Add '-14.7r' to each side of the equation.
92.7 + -14.7r = 58.89 + 14.7r + -14.7r

Combine like terms: 14.7r + -14.7r = 0.0
92.7 + -14.7r = 58.89 + 0.0
92.7 + -14.7r = 58.89

Add '-92.7' to each side of the equation.
92.7 + -92.7 + -14.7r = 58.89 + -92.7

Combine like terms: 92.7 + -92.7 = 0.0
0.0 + -14.7r = 58.89 + -92.7
-14.7r = 58.89 + -92.7

Combine like terms: 58.89 + -92.7 = -33.81
-14.7r = -33.81

Divide each side by '-14.7'.
r = 2.3

Simplifying
r = 2.3

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