2d-7=8-d

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Solution for 2d-7=8-d equation:


Simplifying
2d + -7 = 8 + -1d

Reorder the terms:
-7 + 2d = 8 + -1d

Solving
-7 + 2d = 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.
-7 + 2d + d = 8 + -1d + d

Combine like terms: 2d + d = 3d
-7 + 3d = 8 + -1d + d

Combine like terms: -1d + d = 0
-7 + 3d = 8 + 0
-7 + 3d = 8

Add '7' to each side of the equation.
-7 + 7 + 3d = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 3d = 8 + 7
3d = 8 + 7

Combine like terms: 8 + 7 = 15
3d = 15

Divide each side by '3'.
d = 5

Simplifying
d = 5

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