31-2d=-4(9d-6)

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Solution for 31-2d=-4(9d-6) equation:


Simplifying
31 + -2d = -4(9d + -6)

Reorder the terms:
31 + -2d = -4(-6 + 9d)
31 + -2d = (-6 * -4 + 9d * -4)
31 + -2d = (24 + -36d)

Solving
31 + -2d = 24 + -36d

Solving for variable 'd'.

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

Add '36d' to each side of the equation.
31 + -2d + 36d = 24 + -36d + 36d

Combine like terms: -2d + 36d = 34d
31 + 34d = 24 + -36d + 36d

Combine like terms: -36d + 36d = 0
31 + 34d = 24 + 0
31 + 34d = 24

Add '-31' to each side of the equation.
31 + -31 + 34d = 24 + -31

Combine like terms: 31 + -31 = 0
0 + 34d = 24 + -31
34d = 24 + -31

Combine like terms: 24 + -31 = -7
34d = -7

Divide each side by '34'.
d = -0.2058823529

Simplifying
d = -0.2058823529

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