2+8d+10=9d+42-3d

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Solution for 2+8d+10=9d+42-3d equation:


Simplifying
2 + 8d + 10 = 9d + 42 + -3d

Reorder the terms:
2 + 10 + 8d = 9d + 42 + -3d

Combine like terms: 2 + 10 = 12
12 + 8d = 9d + 42 + -3d

Reorder the terms:
12 + 8d = 42 + 9d + -3d

Combine like terms: 9d + -3d = 6d
12 + 8d = 42 + 6d

Solving
12 + 8d = 42 + 6d

Solving for variable 'd'.

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

Add '-6d' to each side of the equation.
12 + 8d + -6d = 42 + 6d + -6d

Combine like terms: 8d + -6d = 2d
12 + 2d = 42 + 6d + -6d

Combine like terms: 6d + -6d = 0
12 + 2d = 42 + 0
12 + 2d = 42

Add '-12' to each side of the equation.
12 + -12 + 2d = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 2d = 42 + -12
2d = 42 + -12

Combine like terms: 42 + -12 = 30
2d = 30

Divide each side by '2'.
d = 15

Simplifying
d = 15

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