3.1d(2d+7)+-6.2d^2=19.53

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Solution for 3.1d(2d+7)+-6.2d^2=19.53 equation: 


Simplifying
3.1d(2d + 7) + -6.2d2 = 19.53

Reorder the terms:
3.1d(7 + 2d) + -6.2d2 = 19.53
(7 * 3.1d + 2d * 3.1d) + -6.2d2 = 19.53
(21.7d + 6.2d2) + -6.2d2 = 19.53

Combine like terms: 6.2d2 + -6.2d2 = 0.0
21.7d + 0.0 = 19.53
21.7d = 19.53

Solving
21.7d = 19.53

Solving for variable 'd'.

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

Divide each side by '21.7'.
d = 0.9

Simplifying
d = 0.9

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