9d-d+4d-7=3d

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Solution for 9d-d+4d-7=3d equation:


Simplifying
9d + -1d + 4d + -7 = 3d

Reorder the terms:
-7 + 9d + -1d + 4d = 3d

Combine like terms: 9d + -1d = 8d
-7 + 8d + 4d = 3d

Combine like terms: 8d + 4d = 12d
-7 + 12d = 3d

Solving
-7 + 12d = 3d

Solving for variable 'd'.

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

Add '-3d' to each side of the equation.
-7 + 12d + -3d = 3d + -3d

Combine like terms: 12d + -3d = 9d
-7 + 9d = 3d + -3d

Combine like terms: 3d + -3d = 0
-7 + 9d = 0

Add '7' to each side of the equation.
-7 + 7 + 9d = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 9d = 0 + 7
9d = 0 + 7

Combine like terms: 0 + 7 = 7
9d = 7

Divide each side by '9'.
d = 0.7777777778

Simplifying
d = 0.7777777778

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