d-7=-d-7

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


Simplifying
d + -7 = -1d + -7

Reorder the terms:
-7 + d = -1d + -7

Reorder the terms:
-7 + d = -7 + -1d

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

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

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

Solving
d = -1d

Solving for variable 'd'.

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

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

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

Combine like terms: -1d + d = 0
2d = 0

Divide each side by '2'.
d = 0

Simplifying
d = 0

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