d-80=-d-8

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Solution for d-80=-d-8 equation:


Simplifying
d + -80 = -1d + -8

Reorder the terms:
-80 + d = -1d + -8

Reorder the terms:
-80 + d = -8 + -1d

Solving
-80 + d = -8 + -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.
-80 + d + d = -8 + -1d + d

Combine like terms: d + d = 2d
-80 + 2d = -8 + -1d + d

Combine like terms: -1d + d = 0
-80 + 2d = -8 + 0
-80 + 2d = -8

Add '80' to each side of the equation.
-80 + 80 + 2d = -8 + 80

Combine like terms: -80 + 80 = 0
0 + 2d = -8 + 80
2d = -8 + 80

Combine like terms: -8 + 80 = 72
2d = 72

Divide each side by '2'.
d = 36

Simplifying
d = 36

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