9d+d-3d+7=2d

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Solution for 9d+d-3d+7=2d equation:


Simplifying
9d + d + -3d + 7 = 2d

Reorder the terms:
7 + 9d + d + -3d = 2d

Combine like terms: 9d + d = 10d
7 + 10d + -3d = 2d

Combine like terms: 10d + -3d = 7d
7 + 7d = 2d

Solving
7 + 7d = 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
7 + 7d + -2d = 2d + -2d

Combine like terms: 7d + -2d = 5d
7 + 5d = 2d + -2d

Combine like terms: 2d + -2d = 0
7 + 5d = 0

Add '-7' to each side of the equation.
7 + -7 + 5d = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 5d = 0 + -7
5d = 0 + -7

Combine like terms: 0 + -7 = -7
5d = -7

Divide each side by '5'.
d = -1.4

Simplifying
d = -1.4

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