d+91=4d-10

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Solution for d+91=4d-10 equation:


Simplifying
d + 91 = 4d + -10

Reorder the terms:
91 + d = 4d + -10

Reorder the terms:
91 + d = -10 + 4d

Solving
91 + d = -10 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
91 + d + -4d = -10 + 4d + -4d

Combine like terms: d + -4d = -3d
91 + -3d = -10 + 4d + -4d

Combine like terms: 4d + -4d = 0
91 + -3d = -10 + 0
91 + -3d = -10

Add '-91' to each side of the equation.
91 + -91 + -3d = -10 + -91

Combine like terms: 91 + -91 = 0
0 + -3d = -10 + -91
-3d = -10 + -91

Combine like terms: -10 + -91 = -101
-3d = -101

Divide each side by '-3'.
d = 33.66666667

Simplifying
d = 33.66666667

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