25+20d^2=30

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Solution for 25+20d^2=30 equation: 


Simplifying
25 + 20d2 = 30

Solving
25 + 20d2 = 30

Solving for variable 'd'.

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

Add '-25' to each side of the equation.
25 + -25 + 20d2 = 30 + -25

Combine like terms: 25 + -25 = 0
0 + 20d2 = 30 + -25
20d2 = 30 + -25

Combine like terms: 30 + -25 = 5
20d2 = 5

Divide each side by '20'.
d2 = 0.25

Simplifying
d2 = 0.25

Take the square root of each side:
d = {-0.5, 0.5}

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