3d-8=7d+4

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Solution for 3d-8=7d+4 equation:


Simplifying
3d + -8 = 7d + 4

Reorder the terms:
-8 + 3d = 7d + 4

Reorder the terms:
-8 + 3d = 4 + 7d

Solving
-8 + 3d = 4 + 7d

Solving for variable 'd'.

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

Add '-7d' to each side of the equation.
-8 + 3d + -7d = 4 + 7d + -7d

Combine like terms: 3d + -7d = -4d
-8 + -4d = 4 + 7d + -7d

Combine like terms: 7d + -7d = 0
-8 + -4d = 4 + 0
-8 + -4d = 4

Add '8' to each side of the equation.
-8 + 8 + -4d = 4 + 8

Combine like terms: -8 + 8 = 0
0 + -4d = 4 + 8
-4d = 4 + 8

Combine like terms: 4 + 8 = 12
-4d = 12

Divide each side by '-4'.
d = -3

Simplifying
d = -3

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