2d+7=d-7

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


Simplifying
2d + 7 = d + -7

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

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

Solving
7 + 2d = -7 + d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
7 + 2d + -1d = -7 + d + -1d

Combine like terms: 2d + -1d = 1d
7 + 1d = -7 + d + -1d

Combine like terms: d + -1d = 0
7 + 1d = -7 + 0
7 + 1d = -7

Add '-7' to each side of the equation.
7 + -7 + 1d = -7 + -7

Combine like terms: 7 + -7 = 0
0 + 1d = -7 + -7
1d = -7 + -7

Combine like terms: -7 + -7 = -14
1d = -14

Divide each side by '1'.
d = -14

Simplifying
d = -14

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