30x^2+7d-15=0

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Solution for 30x^2+7d-15=0 equation:


Simplifying
30x2 + 7d + -15 = 0

Reorder the terms:
-15 + 7d + 30x2 = 0

Solving
-15 + 7d + 30x2 = 0

Solving for variable 'd'.

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

Add '15' to each side of the equation.
-15 + 7d + 15 + 30x2 = 0 + 15

Reorder the terms:
-15 + 15 + 7d + 30x2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 7d + 30x2 = 0 + 15
7d + 30x2 = 0 + 15

Combine like terms: 0 + 15 = 15
7d + 30x2 = 15

Add '-30x2' to each side of the equation.
7d + 30x2 + -30x2 = 15 + -30x2

Combine like terms: 30x2 + -30x2 = 0
7d + 0 = 15 + -30x2
7d = 15 + -30x2

Divide each side by '7'.
d = 2.142857143 + -4.285714286x2

Simplifying
d = 2.142857143 + -4.285714286x2

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