3d+8-2d=7

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Solution for 3d+8-2d=7 equation: 


Simplifying
3d + 8 + -2d = 7

Reorder the terms:
8 + 3d + -2d = 7

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

Solving
8 + 1d = 7

Solving for variable 'd'.

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

Add '-8' to each side of the equation.
8 + -8 + 1d = 7 + -8

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

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

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

Simplifying
d = -1

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