3d-7=d+1

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Solution for 3d-7=d+1 equation:


Simplifying
3d + -7 = d + 1

Reorder the terms:
-7 + 3d = d + 1

Reorder the terms:
-7 + 3d = 1 + d

Solving
-7 + 3d = 1 + 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 + 3d + -1d = 1 + d + -1d

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

Combine like terms: d + -1d = 0
-7 + 2d = 1 + 0
-7 + 2d = 1

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

Combine like terms: -7 + 7 = 0
0 + 2d = 1 + 7
2d = 1 + 7

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

Divide each side by '2'.
d = 4

Simplifying
d = 4

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