6d-d+d-7-4d=0

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Solution for 6d-d+d-7-4d=0 equation:


Simplifying
6d + -1d + d + -7 + -4d = 0

Reorder the terms:
-7 + 6d + -1d + d + -4d = 0

Combine like terms: 6d + -1d = 5d
-7 + 5d + d + -4d = 0

Combine like terms: 5d + d = 6d
-7 + 6d + -4d = 0

Combine like terms: 6d + -4d = 2d
-7 + 2d = 0

Solving
-7 + 2d = 0

Solving for variable 'd'.

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

Add '7' to each side of the equation.
-7 + 7 + 2d = 0 + 7

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

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

Divide each side by '2'.
d = 3.5

Simplifying
d = 3.5

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